2" Heater Union Split Nut Union and O-Ring Hot Tub Gasket Waterway Gasket Pair Balboa Gecko (Actual Size 3 Inch)(NOT for Inflatable Hot Tubs) Waterway Gasket 711-4030 - All Spa Parts, 711-4030kit

• UPC   650752175893
• Measures 3" Inside Diameter Edge to Edge in The Threads.. The Split Nut does not Measure 2". ‼️ Plumbing is measured by inside diameter because this measurement is used to calculate the size of the pipe. The inside diameter measurement is the distance from one side of the pipe's inner wall to the other. This measurement is important because when purchasing fittings such as elbows and couplings, the inside diameter is used to ensure that the correct size is selected. If You have a Coleman Saluspa This Split Nut is NOT The Right Product!! perfect for spas and hot tubs of various brands like Artesian Spas, Cal Spas, ThermoSpas, Master Spa, and more. The set includes an O-ring, gasket, and nut made of durable plastic material that ensures long-lasting usage. Heater union gaskets are rubber seals that are used to connect two parts of a heater together. They are typically placed between the heater’s flange and a union. They provide a secure seal to keep the connection between the two parts leak-proof and also prevent any debris or contaminants from entering the system.