Cal Spa Hot Tub Parts

This filter is this most popular size and fits 70% of all tubs it is a 25 Square Foot Filter Cartridge that is 4-15/16" Outside Diameter x 13-5/16" in Length. It has a hole in the top and the bottom that are 2 1/8".   For the 50sqft version of...

This part is a Gasket Heater Union Mo-Flo, 2" ID x 2-3/4" OD Cal Spa with a 2-5/8" Center to Center Small Lip.. The Lip is about 2-5/8" Center to Center but is really thin and tiny meaning the other style gasket with a thick 2-5/8" lip will not work....

This part is a 2" Slip X 2" Threaded Pump Union with Gasket or O-ring that matches Union. The Union receives a 2" pipe or fitting on one side and then Screws to a 2" Wetend(Pump) Threaded Part on the other...

 You are buying a Tecmark 1 Amp Pressure Switch that features 1/8th" MPT Standard Threads and 2 Spade connectors for attaching the 2 wire connections. Watch the Video for How To Information on Pressure Switches. This Universal Switch fits Balboa,...

This part is a Standard 2" Heater or Pump Union Gasket with a 2 1/2" Lip Center to Center. The gasket is 2 7/8" across on the outside the inside diameter is about 2 3/16" and the lip that fits into the union is 2 1/2" center to...