Relton (HST-20) Tub, Tile and Spa Cutter 1-1-4" Brazed-Carbide Hole Saw Drill Bit Omnipure (Q5721) 14"x2.5" Diameter Q-Series 10 Micron Carbon Block saving you from system damage

saving you from system damage or dry runs

Remove strip and shake once to remove excess water

41 ppt concentration

5 standard cartridge dimensions

💧 Pro Tip: Replace the K5522 every 12 months or when you notice a decline in flow rate or water taste

Relton (HST-20) Tub, Tile and Spa Cutter 1-1-4" Brazed-Carbide Hole Saw Drill Bit Omnipure (Q5721) 14"x2.5" Diameter Q-Series 10 Micron Carbon Block saving you from system damageThe Relton HST 20 is a 1 1 4" brazed carbide hole saw engineered for precision drilling through ceramic tile, marble, granite, Corian, and fiberglass in wet applications including tubs, spas, and shower installations. This professional grade bit features a carbide tipped pilot and delivers a standard 2" drilling depth for clean, accurate cuts in the hardest materials. SPECIFICATIONS Relton HST 20 Core Specs Diameter 1 1 4" Standard bore size Drilling