Waterco HRV 18 Collector Assembly (HRV18-COL) switches It is commonly replaced when

It is commonly replaced when the original collar becomes cracked

Trim and spinner fitting for compatible Balboa Microssage applications

Supports a more focused grate-only replacement

Supports a more complete wet-end restoration

Waterco HRV 18 Collector Assembly (HRV18-COL) switches It is commonly replaced whenThe Waterco HRV 18 collector assembly is designed for compatible sand filter applications where the central internal collection section needs replacement. A collector assembly is useful because it serves as one of the key internal structures that works with laterals and related parts to manage water movement through the filter bed. This replacement is especially useful when the original collector is cracked, worn, or too compromised to continue