Lab Procurement Services offers a comprehensive range of high-quality, affordable constant temperature equipment to handle a variety of applications. Please see individual categories for
- Baths (water and dry)
- Chillers
- Circulators
- Incubators (CO2, General Purpose, and Shaking)
- Humidity Test Chambers and Plant Growth Chambers
As well as the Parts and Accessories sections. Our experts are here to help with product selection and quotations - give us a call, or set up a meeting!
Before ordering, check the temperature range against your method: the digital water baths here cover ambient +5° to 99°C, while refrigerated circulators reach -30°C at the low end and up to 170°C at the high end. Compare bath volume, and for chillers the cooling capacity (in kW or HP) and pump type, since the DuraChill CA chillers are listed with either a turbine or a positive displacement pump. Confirm voltage and frequency (120V 60Hz, 208-240V or 230V). Plan for the bath fluid too, such as polycool glycol mixes for below-ambient work and algae inhibitor for water baths, plus the fittings, lids and bypass kits your setup needs.
Constant Temperature: common questions
What is constant temperature equipment?
Constant temperature equipment holds samples, vessels or connected instruments at a set temperature. It includes water and bead baths, heated and refrigerated circulators, recirculating chillers, immersion coolers, general-purpose, CO2 and shaking incubators, humidity test chambers and plant growth chambers. The right choice depends on temperature range, stability, capacity, and whether you need to heat, cool or both.
What is the difference between a circulator and a chiller?
A circulator has a bath with a heater, often refrigeration, and a pump that can control the bath itself or circulate fluid through external equipment. A recirculating chiller is mainly built to remove heat, supplying cooled fluid to equipment such as rotary evaporators, condensers or lasers. Chillers typically focus on cooling capacity, while circulators offer wider temperature ranges and their own working bath.
What fluid should I use in a lab bath or circulator?
Distilled or deionized water is commonly used for moderate temperatures, often with an algae inhibitor to keep the bath clean. For temperatures near or below freezing, a water and glycol mix is typical, and specialty fluids or oils are used at higher temperatures. Use a fluid rated for your full operating range and approved by the equipment manufacturer.
Can I get a quote on a chiller or incubator?
Yes. Volume and quote pricing is available through the Contact Us page, and approved business accounts can pay by purchase order. Larger equipment often ships directly from the manufacturer, so lead times vary by item. Include the model, voltage and quantity in your request so the quote matches what you need.
Shop by type: Incubators, General · Baths · Circulators · Chillers · Bath Accessories · Chiller Parts · Incubator Parts · Humidity Test Chambers · CO2 Incubators · Plant Growth Chambers · Shaking Incubators · Circulators PA
Top brands: Polyscience Corp · BMT USA · Benchmark Scientific
Popular Constant Temperature:
Constant Temperature
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polycool HC -50 (Temperature Range: -50° to 100°C), 1 gallon (3.8 L)SKU: 60340-EAManufacturer: Polyscience Corppolycool HC -50 (Temperature Range: -50° to 100°C), 1 gallon (3.8 L) (1 per EA )Learn More$263.75 - Air Filter Kit, Dynamic (DuraChill CA Chillers AFTER 9/1/2021)SKU: 511-550-EAManufacturer: Polyscience CorpAir Filter Kit, Dynamic (DuraChill CA Chillers AFTER 9/1/2021) (1 per EA )Learn More$485.25
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Metal stacking kit for DKV600/610 Series (OA197)SKU: 281599-EAManufacturer: Yamato Scientific AmericaMetal stacking kit for DKV600/610 Series (OA197) (1 per EA )Learn Morewas $675.00 Special Price $636.06 - Probe, Pt100, Cable length: 2’ (0.6 m) (For Chillers)SKU: 525-876-EAManufacturer: Polyscience CorpExternal Pt100 Probe, Cable length: 2ft, 0.6 m EA /1 (1 per EA)Learn More$300.00
- polytherm S150 (Temperature Range: 50° to 150°C), 1 gallon (3.8 L)SKU: 60327-EAManufacturer: Polyscience Corppolytherm S150 (Temperature Range: 50° to 150°C), 1 gallon (3.8 L) (1 per EA )Learn More$1,819.51
- Fitting, 1/2” male NPT x 5/8” (16 mm) hose barb, nylon, straightSKU: 300-131-EAManufacturer: Polyscience CorpFitting, 1/2in. male NPT x 5/8in., 8 mm hose barb, nylon, straight, for integrated cooling coils EA /1 (1 per EA)Learn More$14.51
- Lid, Water Bath, 10L, High-Clearance, (Models WB10 and WBE 10)SKU: 510-854-EAManufacturer: Polyscience CorpHigh-Clearance Lid, 10L Water Bath, Model WB10 EA /1 (1 per EA)Learn More$140.00
- Metal stacking kit for DKV400 Series (OA196)SKU: 281598-EAManufacturer: Yamato Scientific AmericaMetal stacking kit for DKV400 Series (OA196) (1 per EA )Learn Morewas $675.00 Special Price $636.06
- Fitting, 1/2” male NPT x 1/2” (13 mm) hose barb, nylon, straightSKU: 300-096-EAManufacturer: Polyscience CorpFitting, 1/2in. male NPT x 1/2in., 13 mm hose barb, nylon, straight, for integrated cooling coils EA /1 (1 per EA)Learn More$14.51
- Air Filter for 07R-20, 07R-40, 15RCAL and Histology BathSKU: 305-054-EAManufacturer: Polyscience CorpAir Filter for 07R-20, 07R-40, 15RCAL and Histology Bath EA /1 (1 per EA)Learn More$15.75
- Lid, Water Bath, 2L, High-Clearance (Models WB02 and WBE02)SKU: 510-852-EAManufacturer: Polyscience CorpHigh-Clearance Lid, 2L Water Bath, Model WB02 EA /1 (1 per EA)Learn More$69.51
- Base with locking casters for 15, 20, 28 liter CirculatorsSKU: 505-194-EAManufacturer: Polyscience CorpBase with locking casters for 15, 20, 28 liter Circulators EA /1 (1 per EA)Learn More$326.51
- Probe, Pt100, Cable length: 10’ (2 m) (Chillers)SKU: 60105-EAManufacturer: Polyscience CorpProbe, Pt100, Cable length: 10’ (2 m) (Chillers) (1 per EA )Learn More$284.25
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Silicone Fluid, 1000, 44lb, CAS# 63148-62-9SKU: SI114-44LBBL-EAManufacturer: Spectrum ChemicalSilicone Fluid, 1000 is a polydimethylsiloxane with good lubrication characteristics for plastics and rubber devices and instruments. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use. (1 per EA )Learn More$3,167.74 -
OIL BATH 1L STAINLESS STEEL 220VSKU: BOS-110-EAManufacturer: Yamato Scientific AmericaA new standard for synthetic experiments (1 per EA )Learn Morewas $1,310.00 Special Price $1,169.18 - Temperature Sensor Assembly, Pt100, In-line, brass, 10’ (3 m) cableSKU: 510-670-EAManufacturer: Polyscience CorpIn-line Pt100 Temperature Sensor, brass, 10ft, 3 m cable EA /1 (1 per EA)Learn More$426.75
- Probe, Pt100, Cable length: 25’ (8 m) (for Chillers)SKU: 525-871-EAManufacturer: Polyscience CorpExternal Pt100 Probe, Cable length: 25ft, 8 m EA /1 (1 per EA)Learn More$460.51
- Cable, USB-A to Mini-B, 6’ (1.8 m)SKU: 225-669-EAManufacturer: Polyscience CorpUSB-A to Mini-B, 6ft, 1.8 m EA /1 (1 per EA)Learn More$28.00
- OIL BATH 1L STAINLESS STEEL 115VSKU: BOS-100-EAManufacturer: Yamato Scientific AmericaA new standard for synthetic experiments (1 per EA )Learn Morewas $1,310.00 Special Price $1,169.18
- OIL BATH 2.2L STAINLESS STEEL 115VSKU: BOS-200-EAManufacturer: Yamato Scientific AmericaA new standard for synthetic experiments (1 per EA )Learn Morewas $1,575.00 Special Price $1,405.69
- Membrane filter (2 pcs/set)SKU: 9020010004-EAManufacturer: Yamato Scientific AmericaMembrane filter (2 pcs/set) (1 per EA )Learn Morewas $200.00 Special Price $188.46
- Base with locking casters for LS/LMSKU: 505-169-EAManufacturer: Polyscience CorpBase with locking casters for LS/LM EA /1 (1 per EA)Learn More$228.25
- Manifold Kit, four (4) ports with shutoffsSKU: 510-664-EAManufacturer: Polyscience CorpManifold Kit, four, 4 ports with shutoffs EA /1 (1 per EA)Learn More$1,378.75
- Kit, UV Light Module and Dynamic Air Filter (Durachill CA Chillers)SKU: 511-551-EAManufacturer: Polyscience CorpKit, UV Light Module and Dynamic Air Filter (Durachill CA Chillers) (1 per EA )Learn More$865.51
How Can We Help?
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LPS provides procurement services:
Strategic and customized product sourcing services to find the best vendorsUnparalleled customer service from dedicated procurement managers
Custom web portal where you can order items from any vendor on one site
Consolidate orders and invoices
Wholesale “club” pricing for members
Procure-to-Pay software solutions and process consulting
Enterprise procurement solutions designed for small and mid-sized labs