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Spa Filter Cartridge 6CH-940
Our Price: $19.25

Filter Cartridge 6CH-940

Spa Parts Online sells premium quality filter cartridges. You will find lot of Chinese made filters online and we have tried them ourselves These filters never perform or last the way a quality filter does. Please do not settle for low quality filters think you are saving a few cents.

This spa filter 6CH-940 as with all our spa filter cartridge has 100% satisfaction guarantee.

Outside Diameter

Outside Diameter 6"
Length 8-1/4"
Inside Top Diameter Closed Top w/Handle
Inside Bottom Diameter 1-1/2" SAE (Coarse Thread)
Aqua Kleen AK-9019
Filbur FC-0359
Pleatco PWW50P3
Unicel 6CH940

Spas that use a Unicel 6CH-940 filter are (among others):


Manufacturer: Pleatco
Manufacturer Number: 6CH-940
UPC Code: 678285260091

We offer a quantity discount on 6 or more of 6CH940 filters
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PKW30 Filter Cartridge C-6430
Our Price: $24.50

PWK30 Filter Cartridge C-6430

Spa Parts Online sells Pleatco brand filter cartridges, because we have not found a filter that offers a better value period. Because of our high volume we approached by many manufacturers offering us lower priced filters all the time but we have yet to find one that offers the quality, longevity and overall value of a Pleatco brand filter. Learn more about our filters cartridges here.

This pleatco spa filter PWK30 as with all our spa filter cartridge has 100% satisfaction guarantee.

Outside Diamter

Outside Diameter 6"
Length 10-1/2"
Inside Top Diameter 1-15/16"
Inside Bottom Diameter 1-15/16"
Aqua Kleen  
Filbur FC-3915
Pleatco PRB50-IN
Unicel C-6430
Also found under these numbers:
03FIL1600, 17-2380, RTL-50, 100533, 6540-471, 25391, 817-5000, R173434

Spas that use a pleatco PWK-30 filter are (among others):

Hot Spring Spas - Part #31489

Manufacturer: Pleatco
Manufacturer Number: PWK-30
UPC Code: 090164033006

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Watkins Pressure Switch 73995 w/Wire Harness
Watkins Pressure Switch 73995 w/Wire Harness
Our Price: $65.00

  • Part Number: 73995
  • Pressure switch compatible with various Caldera & HotSpring/HotSpots spas.
  • The pressure switch is a safety device designed to prevent overheating of the spa heater should a low or no-flow condition exist in the spa.
  • The pressure switch is located in the heater circuit. When the switch is closed (proper flow), voltage is transferred to the heater circuit when the control thermostat calls for heat.
  • Hot Spring Spa Supplies carries spa fragrances, air & water valves, control systems, filter accessories, lights, cleaners, pumps, thermostats, and more for virtually every hot spring model.

    Electronic pressure switch used on select Caldera, Hot Spot, Solana model spas. Includes pressure switch wire with 2 wire 3 pin connector.
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73790 no fault heater
Generic Replacement For Hot Spring Spa No-Fault 6000 Heater
Our Price: $335.00

Replacement for Hot Spring Spa No Fault 6000 Titanium Heater

The PDR titanium heater part number 73790 replaces all previous style heaters used from 1995 to current, including the no-fault 6000 stick heater, the no fault 6000 black 4 barrel style and nofault 6000 tri-bend style heater.

This heater is compatible with 115 and 230 spa hook ups. Your previous tubing and thermistors are compatible with this new style heater and hook up is quick and easy.

We have extensive experience with Hot Spring Spas and will be happy to answer any questions you have please email or call us today.

Manufacturer: HydroQuip
Manufacturer Number: C3160-1
Manufacturer Warranty: 1 year parts.

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