Set of 2 Cartridges. OD is 143mm, Total Length is 425mm, Top is Handle, Bottom is 49mm Coarse Thread. Fits some Leisurerite Spas, Alpine Swim Spa, Endless swim Spa Models
Out Side Diameter is 143. Length is 223. Bottom End Cap is 49mm SAE thread. Top End Cap is 54mm hole with raised section. combined with top makes 2 per set. 460mm overall.
Out Side Diameter is 127. Length is 223. Bottom End Cap is 49mm SAE thread. Top End Cap is Semicircle handle. Fits spa International Plug In Spa with External Thread.