QUALITY. Never Compromised. Amtrol Products are made in the USA at our ISO registered facilities by American workers dedicated to producing the highest quality expansion tanks in the world. RESIDENTIAL Products WELL WATER Well-X-Trol Well Tanks Other Amtrol Well Tanks Well-X1 Well Tank System Guardian CP Digital Control Durabase Tank Spacer Pump Mounting Stand PLUMBING & HOT WATER Therm-X-Trol Thermal Expansion Tanks Other Amtrol Thermal Expansion Tanks Hydromax Water Heaters BoilerMate Water Heaters Premier Water Heaters Mini-Trol Water Hammer Arrestor Diatrol Water Hammer Arrestor City Pressure Boosters Reverse Osmosis Tanks Plumbing Accessories HEATING SYSTEMS Extrol Hydronic Expansion Tanks Extrol Specialty Models Air Elimination Hydromax Water Heaters BoilerMate Water Heaters Premier Water Heaters Accessories COMMERCIAL Products PLUMBING & DOMESTIC HOT WATER Therm-X-Trol Thermal Expansion Tanks City Pressure Boosters Premier Water Heaters Diatrol Shock & Surge Suppressors Water Hammer Arrestors HYDRONIC HEATING & CHILLED WATER Extrol Hydronic Expansion Tanks Air Separators Air & Dirt Separators Buffer Tanks Compression Tanks FIRE PROTECTION Fire-X-Trol Expansion Tanks Surge-Trol Surge Tanks PUMP SYSTEMS Well-X-Trol Pressure Tanks Guardian CP Digital Control SPECIALTY Industries NON-REFILLABLE CYLINDERS Refrigerant Gas Cylinders Foam & Adhesive Cylinders REFILLABLE CYLINDERS Steel Cylinders CoMet Lightweight Cylinders REFRIGERANT RECOVERY CYLINDERS Steel Recovery Cylinders CoMet Lightweight Recovery Cylinders Installer REWARDS Participation in Amtrol® Rewards is easy! LOGIN HERE