Unicel FG-3016 Replacement DE Filter Grid | 16-1/2" x 18" | Sta-Rite System 3 Pumps 1 Gallon (R-0013-G) is a

1 Gallon (R-0013-G) is a liquid reagent designed for use in Taylor pool and spa test kits to measure cyanuric acid (CYA) levels in water

Depending on your pump's pressure

Reduces and helps prevent waterline rings

Treads for Vinyl Pools

If your old filter measured 8"

Unicel FG-3016 Replacement DE Filter Grid | 16-1/2" x 18" | Sta-Rite System 3 Pumps 1 Gallon (R-0013-G) is aThe Unicel FG 3016 is a single replacement DE filter grid engineered for Sta Rite System 3 center core DE filter systems. Measuring 16 1 2" wide x 18" long, this 25 sq. ft. center core element delivers precision fit and long lasting filtration performance built with durable polyester filter fabric and a reinforced polypropylene frame to handle the demands of pressurized DE filtration. IMPORTANT: CHECK BEFORE YOU BUY This product is a single (1)