Zilmet ZHT18-30 Cal Pro 4.8 Gallon In-Line Hydronic Expansion Tank, 1/2" MNPT VPP10947 High-performance TiCo Hi-Density carbide teeth

High-performance TiCo Hi-Density carbide teeth deliver an unmatched up to 50X longer cutting life versus standard bi-metal blades

Cleanup with mineral spirits or paint thinner

Finish: Matte Black Steel With Orange Insulating Plastic

anti-scale materials to ensure long life

Zilmet ZHT18-30 Cal Pro 4.8 Gallon In-Line Hydronic Expansion Tank, 1/2" MNPT VPP10947 High-performance TiCo Hi-Density carbide teethZilmet ZHT18 30 Cal Pro 4. 8 Gallon In Line Hydronic Expansion Tank, 1 2" MNPT Zilmet in line hydronic expansion tanks feature a compact design and a seamless diaphragm that never stretches or creases. Each tank is leak tested and all diaphragms are designed to maximize draw down. All tanks for use with a boiler in a non potable, hydronic application. Features Each tank is factory leak tested to ensure tank integrity Certified synthetic SBR rubber