This part is a Wear Ring that measures 2 5/8" inside Diameter and fits some Aqua-Flo XP2e and Xp3 Impellers except the 3.0HP Xp2e Impeller... That Impeller requires a different Wear Ring which measures 2 3/8" Inside Diameter.. Look at the chart in the...

This is a 115V Center Discharge Aqua-Flo Circulation pump with a 1 1/2" Suction and Pressure side that measures about 2 3/8" Across the threads. Circ-Master pump takes 24-hour filtration to a new level, delivering the highest GPM of any recirculation...

This part is a Filter Cartridge,  7 3/8" Long x 8" Across 4" Hole Master Spa & Down East 2004+. This filter is 7 3/8" long x 8" Wide and it has a top hole that is 4". The overall length of this housing is about 7 3/8". The top hole size is about...

Developed specially for spas, AquaChek Spa 6-in-1 gives you a complete look at the water chemistry in your spa or hot tub. Choose Spa 6-in-1 to get a comprehensive understanding of your spa water balance.Tests for: Total Chlorine: 0-10 ppm Total...

This part is a Large high volume cone shaped bellows Brown in Color... Especially suited for latching air sensors and mechanical sequencing switches. Shipped w/nutMounting hole 7/8" This link is to the same style switch in Beige: Beige, PT1,...

6 Port manifold with 3/4" ribbed barbs and (6) 3/8" smooth barb ports. This unique manifold can be can be cut into multiple manifolds of 2, 4, or 6-ports. Includes 2 3/8" barb plugs. We have seen these parts used in water and air systems on spas and hot...

This Manifold is  1 1/2" input which measures 1 7/8" Inside Diameter x (4) 1/2" outputs that measure 3/4" Inside Diameter.  Note: These manifolds are new old stock so they will not be perfect aesthetically...   Barb/Port...

ThermostatsSingle pole rated at 25 amps with max temp rating at 107°F. Best results are obtained when the bulb is installed in a dry well or groove tube at or immediately before the heater. This is a safety device! If it is found to be out of...

You are buying a 1"FTB X 1" Slip Pump Union with O-ring that matches the Union. The Union receives a 1" Inside Diameter which measures about 1 1/4" on the outside pipe or fitting on one side and then Screws to a 1" Wetend (Pump)...

Biguanide is a chlorine-free sanitizer used in mineral purification systems. Get test results for 3 important chemistries in seconds: Biguanide, pH, and Total Alkalinity.