CMP Generic Manifold [1" S x 1" Spg x 1" Spg x (8) 3/8"b] (21028-000-000) gaskets Housings like this are useful

Housings like this are useful because they form the main body around the heating area and help preserve the plumbing path and overall structure of the heater assembly

or physically worn

making it especially useful when the goal is to restore the sanitation side of the spa with a clean and focused replacement

Matching the correct lead length

It is a smart service option when you need a button that restores pneumatic control without creating clearance or fitment problems behind the panel

CMP Generic Manifold [1" S x 1" Spg x 1" Spg x (8) 3/8"b] (21028-000-000) gaskets Housings like this are usefulThe CMP generic manifold is designed for compatible plumbing or air line applications where a 1 inch slip by dual 1 inch spigot body with eight 3 8 inch barb outlets is needed. A manifold is useful because it helps split one larger supply path into multiple smaller lines, supporting cleaner routing and more efficient system organization. This replacement is especially useful when the original manifold is cracked, leaking, damaged, or no longer holding