Waterway Drain Grate [9" x 9" Square Black] (642-4791V) couplings 5 THP 2004 and newer

5 THP 2004 and newer related setups

Using an OEM-style cartridge can be especially practical when fit and compatibility are priorities

Replacing the nose cap can help restore both the structural finish and the day-to-day usability of the cleaner

Wet end for compatible Balboa Vico 4

Light-duty flow switches like this are useful in control applications where accurate flow verification matters more than heavy switching capacity

Waterway Drain Grate [9" x 9" Square Black] (642-4791V) couplings 5 THP 2004 and newerWaterway Drain Grate [9" x 9" Square Black] is a replacement drain component designed for compatible pool, spa, and bath drain installations. This Waterway Plastics part supports proper water movement, service access, and finished system appearance when matched to the correct drain body or assembly. Use it during drain repairs, equipment refreshes, or replacement work where the size, style, color, and part number need to match the existing