Waterway Manifold [3/8" Sb 10 Port Flow Thru 1-1/2"s x 1-1/2" Spg] (672-4660) matrix A union like this is

A union like this is useful where the line needs to remain removable for service while still maintaining a clean rigid-plumbing layout on both sides of the connection

A filter cartridge helps maintain cleaner circulating water by trapping suspended debris inside the filtration system

and EcoM3 V pump applications

This replacement is especially useful when the original gauge is damaged

Helps secure major filter sections together

Waterway Manifold [3/8" Sb 10 Port Flow Thru 1-1/2"s x 1-1/2" Spg] (672-4660) matrix A union like this isWaterway Manifold [3 8" Sb 10 Port Flow Thru 1 1 2"s x 1 1 2" Spg] is a genuine Waterway Plastics replacement part used for directing water or air through multiple plumbing branches in a spa or pool system. This component is intended for pool and spa service work where the original part is worn, damaged, missing, or no longer sealing or operating as intended. Choosing the correct Waterway replacement part helps maintain proper fit, flow, and equipment