Watts-FSRO35 Flexwave Steel Tank for RO Storage, 21"x 27.75", 32 Gallon Capacity, 1 1/4"NPT
Professional-Grade Flexwave Steel Pressure Tank for Reverse Osmosis Systems
32-gallon capacity steel accumulator tank with patented oversize diaphragm design for commercial and high-demand residential RO applications
Engineered for Systems That Need More Storage and Pressure
Patented Flexwave Diaphragm
Oversize butyl diaphragm captures 20 to 30 percent more water than standard tanks, maximizing storage efficiency in the same footprint
Cold-Rolled Steel Construction
Precision-welded tank with primer and electrostatic polyurethane coating for corrosion resistance and long-term durability in demanding environments
Stainless Steel Connection
1.25-inch NPT all-stainless water connection provides robust, leak-free integration with commercial RO systems and larger pipe diameters
125 PSI Rated Pressure
Factory tested for air-tight construction with maximum working pressure of 125 psi, ideal for systems requiring higher pressure differentials
Commercial and High-Capacity Residential RO Systems
The Watts FSRO35 is designed for reverse osmosis systems requiring large-volume storage and higher pressure capacity. The 1.25-inch NPT connection accommodates commercial-grade plumbing. Ideal for restaurants, offices, small businesses, or whole-home systems where standard 5 to 20 gallon tanks are insufficient. Works with any RO system that can accommodate a 21-inch diameter by 27.75-inch tall tank footprint and requires an accumulator tank rated to 125 psi.
Inspection and Service Schedule
Pressure Check
Verify air pressure on tank side of diaphragm matches system requirements, typically 7 to 10 psi below operating pressure
Connection Inspection
Inspect stainless steel NPT connection and tank exterior for corrosion, leaks, or coating damage
Diaphragm Assessment
Evaluate diaphragm integrity and overall tank performance, replace tank if pressure loss or water quality issues appear
Commercial Ready
32 gallons of storage capacity handles high-demand environments without constant RO cycling
Built to Last
Cold-rolled steel with precision welding and protective coating outperforms plastic alternatives
Space Efficient
Flexwave design stores more water in the same tank dimensions as traditional models
Professional Integration
1.25-inch NPT connection and 125 psi rating match commercial plumbing standards
Professional-Grade Flexwave Steel Pressure Tank for Reverse Osmosis Systems
32-gallon capacity steel accumulator tank with patented oversize diaphragm design for commercial and high-demand residential RO applications
Engineered for Systems That Need More Storage and Pressure
Patented Flexwave Diaphragm
Oversize butyl diaphragm captures 20 to 30 percent more water than standard tanks, maximizing storage efficiency in the same footprint
Cold-Rolled Steel Construction
Precision-welded tank with primer and electrostatic polyurethane coating for corrosion resistance and long-term durability in demanding environments
Stainless Steel Connection
1.25-inch NPT all-stainless water connection provides robust, leak-free integration with commercial RO systems and larger pipe diameters
125 PSI Rated Pressure
Factory tested for air-tight construction with maximum working pressure of 125 psi, ideal for systems requiring higher pressure differentials
Commercial and High-Capacity Residential RO Systems
The Watts FSRO35 is designed for reverse osmosis systems requiring large-volume storage and higher pressure capacity. The 1.25-inch NPT connection accommodates commercial-grade plumbing. Ideal for restaurants, offices, small businesses, or whole-home systems where standard 5 to 20 gallon tanks are insufficient. Works with any RO system that can accommodate a 21-inch diameter by 27.75-inch tall tank footprint and requires an accumulator tank rated to 125 psi.
Inspection and Service Schedule
Pressure Check
Verify air pressure on tank side of diaphragm matches system requirements, typically 7 to 10 psi below operating pressure
Connection Inspection
Inspect stainless steel NPT connection and tank exterior for corrosion, leaks, or coating damage
Diaphragm Assessment
Evaluate diaphragm integrity and overall tank performance, replace tank if pressure loss or water quality issues appear
Commercial Ready
32 gallons of storage capacity handles high-demand environments without constant RO cycling
Built to Last
Cold-rolled steel with precision welding and protective coating outperforms plastic alternatives
Space Efficient
Flexwave design stores more water in the same tank dimensions as traditional models
Professional Integration
1.25-inch NPT connection and 125 psi rating match commercial plumbing standards
Description
Professional-Grade Flexwave Steel Pressure Tank for Reverse Osmosis Systems
32-gallon capacity steel accumulator tank with patented oversize diaphragm design for commercial and high-demand residential RO applications
Engineered for Systems That Need More Storage and Pressure
Patented Flexwave Diaphragm
Oversize butyl diaphragm captures 20 to 30 percent more water than standard tanks, maximizing storage efficiency in the same footprint
Cold-Rolled Steel Construction
Precision-welded tank with primer and electrostatic polyurethane coating for corrosion resistance and long-term durability in demanding environments
Stainless Steel Connection
1.25-inch NPT all-stainless water connection provides robust, leak-free integration with commercial RO systems and larger pipe diameters
125 PSI Rated Pressure
Factory tested for air-tight construction with maximum working pressure of 125 psi, ideal for systems requiring higher pressure differentials
Commercial and High-Capacity Residential RO Systems
The Watts FSRO35 is designed for reverse osmosis systems requiring large-volume storage and higher pressure capacity. The 1.25-inch NPT connection accommodates commercial-grade plumbing. Ideal for restaurants, offices, small businesses, or whole-home systems where standard 5 to 20 gallon tanks are insufficient. Works with any RO system that can accommodate a 21-inch diameter by 27.75-inch tall tank footprint and requires an accumulator tank rated to 125 psi.
Inspection and Service Schedule
Pressure Check
Verify air pressure on tank side of diaphragm matches system requirements, typically 7 to 10 psi below operating pressure
Connection Inspection
Inspect stainless steel NPT connection and tank exterior for corrosion, leaks, or coating damage
Diaphragm Assessment
Evaluate diaphragm integrity and overall tank performance, replace tank if pressure loss or water quality issues appear
Commercial Ready
32 gallons of storage capacity handles high-demand environments without constant RO cycling
Built to Last
Cold-rolled steel with precision welding and protective coating outperforms plastic alternatives
Space Efficient
Flexwave design stores more water in the same tank dimensions as traditional models
Professional Integration
1.25-inch NPT connection and 125 psi rating match commercial plumbing standards
