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It's a versatile piece of gear that earns its place well beyond the hot tub
1 x DuraVent 3PVP-WTI PelletVent Wall Thimble - 3"
Two things set this cartridge apart
along with the Callaway 50
1 x Watkins Wellness 79005 Hi-Limit Thermistor
Unicel 4CH-35 | 35 sq ft Top Load Spa Filter Brand_Travis Industries It's a versatile piece ofThe Unicel 4CH 35 is a 35 square foot top load replacement spa filter cartridge a fundamentally different design from the drop in cartridges most spa owners picture. Instead of two open ends and a filter well that the cartridge simply sits inside, this one has a 1 1 2" male pipe thread molded into the bottom end cap and a molded cone handle on top. It screws directly onto the suction fitting in the floor of the filter compartment. That threaded