Environmental Test Chamber
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Showing 1591–1620 of 2010 results
| Brand | Qigao Instruments (SHQIGAO) |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | HSY-510G-4 |
| Temperature Range | –50 °C (dual-bath isothermal operation), ±1 °C accuracy |
| Temperature Stability | ±0.5 °C |
| Temperature Uniformity | ≤2 °C across bath volume |
| Cooling Rate | 0.7–1 °C/min |
| Heating Rate | 1–3 °C/min |
| Temperature Resolution | 0.1 °C |
| Control Accuracy | ±0.1 °C (display), ±1 °C (setpoint maintenance) |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Max. Power Consumption | 1500 W |
| Ambient Operating Conditions | ≤30 °C, ≤85% RH |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | General Distributor |
| Price | USD 2,650 (approx.) |
| Internal Dimensions (W×H×D, mm) | 500×600×500 / 600×750×500 / 600×850×800 / 1000×1000×800 / 1000×1000×1000 |
| External Dimensions (W×H×D, mm) | 1750×2250×2350 / 1850×2350×2350 / 1850×2500×2750 / 2300×2750×2800 / 2350×2800×3000 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range (optional) | 20–98 %RH |
| Rapid Temperature Transition Range | −45 °C to +85 °C |
| Rapid Temperature Transition Rate Options | 5 / 10 / 15 / 20 / 25 / 30 °C/min (linear or non-linear programmable) |
| Temperature Control Accuracy | ±0.5 °C |
| Humidity Control Accuracy (optional) | ±2.5 %RH |
| Temperature Uniformity | ±2.0 °C |
| Humidity Uniformity (optional) | ±3.0 %RH |
| Temperature Resolution | 0.1 °C |
| Humidity Resolution (optional) | 0.1 %RH |
| Cooling System | Water-cooled |
| Compressor | Tecumseh (France) or Bitzer (Germany) |
| Power Supply | AC 380 V, 3-phase 5-wire, 50/60 Hz |
| Weight | 950–2300 kg |
| Controller | 7-inch true-color LCD touchscreen (800×480), 1000 stored programs (100 steps each, up to 999 cycles per program), Ethernet interface (10/100 Mbps), data logging with 1–60 s sampling interval, 600-day storage capacity at 60 s interval |
| Construction | Inner chamber – SUS304 stainless steel |
| Brand | Custom OEM / Third-Party Industrial OEM |
|---|---|
| Origin | Imported (Global Sourcing) |
| Supplier Type | Authorized Industrial Distributor |
| Pricing | USD 2,650 (FOB ex-factory, subject to configuration and certification requirements) |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 14,000 (Reference Only) |
| Internal Dimensions (W×H×D) | 50×75×60 cm to 100×100×100 cm |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98 %RH (optional: 5–98 %RH) |
| Rapid Thermal Ramp Rates | 5–25 °C/min (selectable) |
| Temp. Uniformity | ±2 °C |
| Humidity Uniformity | ±3.0 %RH (≥75 %RH) |
| Temp. Stability | ±0.5 °C |
| Humidity Stability | ±2.5 %RH |
| Construction | SUS304 Stainless Steel |
| Refrigeration System | Hermetic Dual-Stage Compressor with Eco-Friendly Refrigerants (R404A/R23) |
| Controller | 7″ TFT Touchscreen HMI with English/Chinese Interface |
| Power Supply | AC 380 V ±5 %, 50 Hz ±0.5 Hz, 3-Phase 5-Wire |
| Brand | Custom OEM |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 14,000 (FOB) |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98% RH (optional: 5–98% RH) |
| Rapid Thermal Transition Rates | 5–25 °C/min (selectable) |
| Temperature Uniformity | ±2 °C |
| Temperature Fluctuation | ±0.5 °C |
| Humidity Uniformity | ±3.0% RH (≥75% RH) |
| Humidity Fluctuation | ±2.5% RH |
| Internal Dimensions (W×H×D, cm) | 50×75×60 |
| Construction Material | SUS#304 Stainless Steel |
| Refrigeration System | Fully Enclosed, Low-Noise, Dual-Stage Compressor with Eco-Friendly Refrigerants (R404A/R23) |
| Controller | 7-inch Color LCD Touchscreen Interface with Bilingual (English/Chinese) Support |
| Compliance | GB/T 2423.1, GB/T 2423.2, GB/T 2423.22, GJB 150.3–150.5, GB 10589, GB 11158, GB 10592 |
| Brand | Custom OEM |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 14,200 (FOB) |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98% RH (optional: 5–98% RH) |
| Rapid Temp. Transition Rates | 5–25 °C/min (selectable) |
| Temp. Uniformity | ±2 °C |
| Humidity Uniformity | ±3.0% RH (≥75% RH) |
| Temp. Stability | ±0.5 °C |
| Humidity Stability | ±2.5% RH |
| Internal Dimensions (W×H×D, cm) | 50×75×60 / 60×85×80 / 100×100×80 / 100×100×100 |
| Test Port | Ø50 mm (left side) |
| Refrigeration | Hermetic dual-stage cascade system with R404A/R23 eco-refrigerants |
| Controller | Full-color LCD touch HMI with bilingual (EN/CN) interface, PID auto-tuning, programmable ramp/soak profiles |
| Power Supply | AC 380 V ±5%, 50 Hz ±0.5 Hz, 3-phase 5-wire, 2.5 m cable |
| Brand | OEM / Custom-Built |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 14,200 (FOB) |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 14,500 (FOB) |
| Internal Dimensions (mm) | KS-TH-100: 450×450×500 |
| KS-TH-225 | 500×600×750 |
| KS-TH-500 | 700×800×900 |
| KS-TH-800 | 800×1000×1000 |
| KS-TH-1000 | 1000×1000×1000 |
| Temperature Range | −70 °C to +150 °C |
| Ramp Rate | Up to 10 °C/min (typical, load-dependent) |
| Uniformity | ±0.5 °C (at steady state, per IEC 60068-3-5) |
| Stability | ±0.3 °C |
| Control System | Fuzzy PID programmable controller with RS232 interface |
| Refrigerant | R-404A (ozone-friendly, non-CFC) |
| Air Circulation | Forced convection via high-efficiency EBM centrifugal blower and annular airflow duct |
| Safety Features | Independent overtemperature limiter, leakage current protection, door-open alarm, power-failure recovery, sensor fault detection |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | General Distributor |
| Price | USD 14,000 (approx.) |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98% RH (optional: 5–98% RH) |
| Rapid Thermal Ramp Rates | 5–25 °C/min (configurable) |
| Temperature Uniformity | ±2 °C |
| Temperature Fluctuation | ±0.5 °C |
| Humidity Uniformity | ±3.0% RH (at ≥75% RH) |
| Humidity Fluctuation | ±2.5% RH |
| Internal Dimensions (W×H×D, cm) | 50×75×60 / 60×85×80 / 100×100×80 / 100×100×100 |
| Test Port | Ø50 mm on left side |
| Control Interface | Full-color LCD touch HMI with bilingual (EN/CN) support |
| Programmable Cycles | 1–999 |
| Soak Time Range | 00:00:00–999:59:59 |
| Compliance | MIL-STD-810G / GJB 150.3, 150.4, 150.9 / GB/T 2423.1–2423.4 / GB 11158 / GB 10589 / GB 10592 / GB/T 10586 |
| Construction | SUS#304 stainless steel interior |
| Refrigeration | Hermetic dual-stage cascade compressor system with eco-friendly refrigerants R404A/R23 |
| Power Supply | AC 380 V ±5%, 50 Hz ±0.5 Hz, 3-phase 5-wire, 2.5 m cable |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | General Distributor |
| Price | USD 14,500 (approx.) |
| Temperature Range | –70 °C to +150 °C |
| Rapid Thermal Transition Range | –45 °C to +85 °C |
| Max Linear Ramp Rate | 15 °C/min |
| Temp. Resolution/Accuracy | 0.1 °C / ±0.5 °C |
| Humidity Range (Optional) | 5–98% RH |
| Humidity Accuracy | ±2.5% RH |
| Interior Material | SUS304 Stainless Steel |
| Insulation | High-Density Polyurethane Foam (HCFC-Free) |
| Refrigeration | Air-Cooled or Water-Cooled |
| Compressor | Tecumseh (France) |
| Refrigerant | R-404A / R-507A (EPA SNAP-Approved) |
| Controller | Imported LCD Touchscreen with Multi-Step Programmable Profile Support (Ramp/Soak, Linear/Slope Mode) |
| Viewing Window | Double-Layer Tempered Glass with Anti-Fog Heater & LED Illumination |
| Test Port | Ø50 mm (standard), configurable |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | General Distributor |
| Temperature Range | –70 °C to +150 °C |
| Rapid Transition Range | –45 °C to +85 °C |
| Heating/Cooling Rate (Linear) | 3.0–15 °C/min (adjustable) |
| Heating/Cooling Rate (Non-linear) | 3.0–20 °C/min (adjustable) |
| Temperature Control Accuracy | ±0.5 °C |
| Humidity Range (Optional) | 20–98% RH (extendable to 5–98% RH on special request) |
| Humidity Control Accuracy | ±2.5% RH |
| Temperature Resolution | 0.1 °C |
| Humidity Resolution | 0.1% RH |
| Temperature Uniformity | ±2.0 °C |
| Humidity Uniformity | ±3.0% RH |
| Construction | Interior and exterior stainless steel (SUS304), brushed finish |
| Insulation | High-density polyurethane foam with ethyl chloroformate formulation |
| Cooling Method | Air-cooled or water-cooled |
| Refrigeration Compressor | Tecumseh (France) |
| Refrigerant | R-404A / R-501 (EPA-approved, ozone-friendly) |
| Controller | Intelligent LCD touchscreen with multi-segment programmable logic for temperature/humidity ramp-and-soak profiles |
| Observation Window | Double-layer tempered glass with anti-fog heater and LED illumination |
| Test Port | Standard Ø50 mm port with silicone gasket for external cabling |
| Mobility | Integrated casters with locking screws |
| Temperature Range | -70 to +150 °C |
|---|---|
| Humidity Range | 20–98% RH |
| Temperature Uniformity | ±1 °C |
| Humidity Uniformity | ±5% RH |
| Refrigerant | R404A/R23 (ODP = 0, GWP-optimized blend) |
| Controller | PLC-Based Touchscreen HMI with Embedded Test Sequencing Software |
| Optional | RS232/RS485 Interface, Paperless Data Logger, Remote Monitoring Suite (PC + Software + Cables) |
| Brand | OEM / Custom-Built |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price Range | USD 14,000–16,500 (FOB) |
| Temperature Range (High Zone) | +80°C to +200°C |
| Temperature Range (Low Zone) | −10°C to −70°C |
| Operational Test Range | −40°C to +150°C |
| Control Accuracy | ±2.0°C |
| Resolution | 0.01°C |
| High-Zone Ramp Rate (RT → +150°C) | ≤40 min |
| Low-Zone Ramp Rate (RT → −70°C) | ≤100 min |
| Test Zone Temperature Recovery Time | 3–5 min |
| Internal Dimensions (W×H×D) | 600 × 500 × 500 mm |
| External Dimensions (W×H×D) | 1500 × 2100 × 2250 mm |
| Construction | Dual-chamber (hot/cold) + test chamber |
| Inner/Outer Material | SUS304 stainless steel (polished finish) |
| Insulation | High-density glass wool + rigid polyurethane (PU) foam |
| Anti-sweat System | K-type thermocouple-based thermal energy redistribution |
| Sealing | High-tensile elastomeric packing (−200°C to +400°C) |
| Actuation | Pneumatic damper control for zone isolation |
| Accessories | Two adjustable stainless-steel test shelves |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 2,650 (FOB) |
| Temperature Range | -70°C to +150°C |
| Rapid Thermal Cycling Range | -45°C to +85°C |
| Max Linear Ramp Rate | 15°C/min |
| Humidity Range (Optional) | 5–98% RH |
| Temp. Resolution/Accuracy | 0.1°C / ±0.5°C |
| Humidity Resolution/Accuracy | 0.1% RH / ±2.5% RH |
| Internal Construction | SUS304 Stainless Steel (Matte Finish) |
| Insulation | High-Density Polyurethane Foam with Closed-Cell Structure |
| Cooling System | Air-Cooled or Water-Cooled Configurations Available |
| Compressor | Tecumseh (France) |
| Refrigerant | R-404A & R-501 (EPA-Compliant, Ozone-Safe) |
| Controller | LCD Touchscreen Interface with Multi-Step Programmable Profiles (Ramp/Soak, Quick Jump, Slope Control) |
| Viewing Window | Double-Layer Tempered Glass with Anti-Condensation Heater & Fluorescent Illumination |
| Sealing | Dual-Gasket Door Seal with Positive-Pressure Compression |
| Mobility | Integrated Casters with Locking Brakes |
| Test Port | Ø50 mm Standard Penetration Port (Sealed Grommet Included) |
| Compliance | Designed per IEC 60068-2-14, MIL-STD-810H Method 503.7, JIS Z 8702, and ASTM D4329 Annex A3 for Accelerated Environmental Stress Screening (ESS) |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 2,650 (FOB) |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | General Distributor |
| Price | USD 2,700 (approx.) |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | General Distributor |
| Price | USD 2,700 (FOB, ex-works |
| Temperature Range | –70 °C to +180 °C |
| Ramp Rate | Up to 15 °C/min (typical, dependent on load and chamber volume) |
| Internal Construction | SUS304 Stainless Steel |
| External Construction | Cold-Rolled Steel with Powder-Coated Finish |
| Insulation | High-Density Polyurethane Foam (≥100 mm thickness) |
| Cooling System | Water-Cooled |
| Compressor | Tecumseh (France) or Bitzer (Germany) |
| Power Supply | AC 380 V, 3-phase 5-wire, 50/60 Hz |
| Weight | 950–2300 kg (model-dependent) |
| Brand | KS |
|---|---|
| Model | KS-TH-225 / KS-TH-408 / KS-TH-800 / KS-TH-1000 |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98% RH (optional: 5–98% RH) |
| Rapid Temperature Transition Ranges | A: −45 °C to +85 °C |
| B | −20 °C to +85 °C |
| Ramp Rates | 5–25 °C/min (customizable) |
| Temperature Uniformity | ±2 °C |
| Temperature Fluctuation | ±0.5 °C |
| Humidity Uniformity | ±3.0% RH (at ≥75% RH) |
| Humidity Fluctuation | ±2.5% RH |
| Interior Construction | SUS#304 Stainless Steel |
| Refrigeration System | Hermetic, low-noise, dual-stage compressor with eco-friendly refrigerants (R404A/R23) |
| Controller | Touchscreen LCD with bilingual (English/Chinese) interface |
| Power Supply | AC 380 V ±5%, 50 Hz ±0.5 Hz, 3-phase 5-wire |
| Compliance | GJB 150.3, GJB 150.4, GJB 150.9, GB/T 2423.1–2008, GB/T 2423.2–2008, GB/T 2423.3–2006, GB 11158, GB 10589–89, GB 10592–89, GB/T 10586–89 |
| Brand | OEM / Custom Brand |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 14,000 (FOB) |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98% RH (optional: 5–98% RH) |
| Rapid Temperature Transition Rates | 5–25 °C/min (selectable) |
| Temperature Uniformity | ±2 °C |
| Temperature Stability | ±0.5 °C |
| Humidity Uniformity | ±3.0% RH (at ≥75% RH) |
| Humidity Stability | ±2.5% RH |
| Internal Dimensions (W×H×D, cm) | 50×75×60 |
| Construction Material | SUS304 Stainless Steel |
| Refrigeration System | Dual-stage cascade refrigeration with HFC-507/R23 eco-friendly refrigerants |
| Control Interface | 7-inch color LCD touch panel, bilingual (English/Chinese) |
| Power Supply | AC 380 V ±5%, 50 Hz ±0.5 Hz, 3-phase 5-wire |
| Test Port | Ø50 mm on left side wall |
| Compliance Standards | GB/T 2423.1, GB/T 2423.2, GB/T 2423.22, GJB 150.3, GJB 150.4, GB/T 10589, GB/T 11158, GB/T 10592 |
| Brand | Custom OEM |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 14,500 (FOB) |
| Temperature Range | −70 °C to +150 °C |
| Humidity Range | 20–98% RH (optional 5–98% RH) |
| Rapid Thermal Ramp Rates | 5–25 °C/min (selectable) |
| Temp. Uniformity | ±2 °C |
| Humidity Uniformity | ±3.0% RH (≥75% RH) |
| Temp. Stability | ±0.5 °C |
| Humidity Stability | ±2.5% RH |
| Test Port | Ø50 mm on left wall |
| Control Interface | 7″ color LCD touch controller with bilingual (EN/CN) GUI |
| Compliance | GB/T 2423.1–2023, GB/T 2423.2–2023, GB/T 2423.22–2012, GJB 150.3A–2009, GJB 150.4A–2009, GB/T 10589–2015, GB/T 11158–2015, GB/T 10592–2012 |
| Construction | Interior & exterior SUS304 stainless steel |
| Refrigeration | Dual-stage cascade system with HFC-507/R23 eco-refrigerants |
| Safety Protections | Overcurrent, earth leakage, compressor high-pressure/overheat, phase failure, overtemperature, grounding fault, audible alarm |
| Brand | Other Brands |
|---|---|
| Temperature Range (Hot Zone) | +80°C to +200°C |
| Temperature Range (Cold Zone) | −10°C to −70°C |
| Operational Test Range | −40°C to +150°C |
| Temperature Control Accuracy | ±2°C |
| Temperature Resolution | 0.01°C |
| Hot Zone Ramp Rate (RT → +150°C) | ≤40 min |
| Cold Zone Ramp Rate (RT → −70°C) | ≤100 min |
| Test Zone Temperature Recovery Time | 3–5 min |
| Internal Dimensions | 60 cm (W) × 50 cm (H) × 50 cm (D) |
| External Dimensions | 150 cm (W) × 210 cm (H) × 225 cm (D) |
| Construction | Dual-chamber (hot/cold) + test zone architecture |
| Inner/Outer Chamber Material | SUS#304 stainless steel (polished finish) |
| Insulation | High-density glass wool + rigid polyurethane (PU) foam |
| Sealing System | High-tensile packing rated for −200°C to +400°C |
| Actuation | Pneumatic hot/cold zone isolation valves |
| Accessories | Two adjustable stainless steel test trays |
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | General Distributor |
| Price | USD 2,600 (Reference Only) |
| Brand | OK Instruments |
|---|---|
| Model | OK-UV-290 |
| Chamber Internal Dimensions (W×H×D) | 114 × 40 × 40 cm |
| External Dimensions (W×H×D) | 135 × 140 × 65 cm |
| Temperature Range | Ambient to 70 °C |
| Humidity Range | ≥95% RH |
| Temperature Control Accuracy | ≤±0.5 °C |
| Temperature Uniformity | ≤±2 °C or ≤±3% |
| UV Light Source | Fluorescent UV Lamps (UVA-340 or UVB-313 typical, 280–400 nm) |
| Lamp Lifetime | ~1500 h |
| Exposure Time Setting Range | 0–999 h |
| Construction Material | SUS#304 Stainless Steel (Interior & Exterior) |
| Heating System | U-shaped Titanium Alloy High-Speed Heating Elements |
| Safety Protections | Interlocked Door Cut-off, Over-Temperature Protection, Low-Water Level Detection |
| Power Supply | AC 220 ±5 V, 50 ±0.5 Hz |
| Brand | OEM / Industrial Grade |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Pricing | USD 3,150 (FOB) |
| Temperature Range | Ambient to 70 °C |
| Humidity Range | ≥95% RH |
| Temp. Control Accuracy | ≤±0.5 °C |
| Temp. Uniformity | ≤±2 °C or ≤±3% |
| UV Wavelength Range | 280–400 nm |
| UV Lamp Type | Fluorescent UVA-340 / UVB-313 (typical) |
| Lamp Lifetime | ~2,000 h |
| Exposure Time Range | 0–999 h (adjustable) |
| Interior Dimensions (W×H×D) | 114×40×40 cm |
| Exterior Dimensions (W×H×D) | 135×140×65 cm |
| Construction Material | SUS#304 Stainless Steel (interior & exterior) |
| Heating System | U-shaped Titanium Alloy Heaters |
| Safety Features | Door-interlocked UV cutoff, Over-temperature Protection, Low-water Level Cut-off |
| Brand | OK Instruments |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 5,300–12,800 (FOB Shanghai |
| Internal Dimensions (L×W×H, cm) | 50×50×40 |
| Temperature Range | 0–150°C (chamber), 40–85°C (black panel) |
| Humidity Range | 20–75% RH (light cycle), 20–98% RH (dark cycle) |
| Control Accuracy | ±0.5°C / ±2.0% RH |
| Uniformity | ±2.0°C / ±3.0% RH |
| Irradiance | 550 W/m² ±10% (300–800 nm) or 1000 W/m² ±10% (300–1200 nm) |
| Xenon Lamp Power | 1.8 kW / 2.5 kW / 6 kW |
| Lamp Life | ≥1,500 h at standard irradiance setpoint |
| Spray Cycle | 1–999 min (programmable intermittent/continuous) |
| Spray Pressure | 70–127 kPa |
| Sample Mounting | Dual-layer flat mesh rack or 500 mm diameter rotating carousel (0–3 rpm) |
| Construction | Interior — SUS304 stainless steel |
| Power Supply | AC 380 V ±5%, 50 Hz ±0.5 Hz |
| Brand | OEM / Custom Brand |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 3,600 (FOB) |
| Compliance | IEC 60529, ISO 20653, GB/T 4208, SAE J2527 |
| Chamber Capacity | Standard 1.2 m³ (Customizable) |
| Spray Nozzle Configuration | Adjustable multi-nozzle array (brass & stainless steel) |
| Water Flow Control | Precision solenoid valves with ±2% volumetric repeatability |
| Rotation Table | 360° continuous/intermittent rotation, max load 50 kg, speed 1–6 rpm adjustable |
| Viewing Window | Tempered glass with heated anti-fog coating |
| Casters | Lockable PU swivel casters with stainless steel brackets |
| Drainage System | Sloped stainless steel floor with threaded outlet (DN50) |