
Watts-FH4200BL12 Flowmatic Blue Filter Housing 10 in Std With 1/2 in Ports
Watts FH4200BL12 Core Specs
Construction & Features
| Model Number | Watts FH4200BL12 |
| Housing Color | Blue sump with black cap |
| Thread Design | Buttress thread for superior sealing and security |
| Sidewall Construction | Thick walls with heavy-duty reinforcing ribs |
| Chemical Resistance | Resists acids, alcohol, ammonia, oils, and plating solutions |
| Pressure Relief Valve | Non-PRV style (no integrated pressure relief) |
| Mounting Bracket | Not included (sold separately) |
Where It Works
The Watts FH4200BL12 Flowmatic housing is designed for residential point-of-entry or point-of-use filtration applications where you need a durable, chemically resistant housing for standard 10-inch cartridges. Compatible with sediment, carbon block, pleated polyester, and specialty cartridges in the 2.5" x 10" format. Common uses include whole-house sediment filtration, chlorine reduction before water softeners, well water pre-filtration, and under-sink systems requiring robust housing. The 1/2" NPT ports fit standard plumbing connections, and the reinforced polypropylene construction makes it suitable for environments with mild chemical exposure or aggressive water chemistry.
Watts FH4200BL12 Core Specs
Construction & Features
| Model Number | Watts FH4200BL12 |
| Housing Color | Blue sump with black cap |
| Thread Design | Buttress thread for superior sealing and security |
| Sidewall Construction | Thick walls with heavy-duty reinforcing ribs |
| Chemical Resistance | Resists acids, alcohol, ammonia, oils, and plating solutions |
| Pressure Relief Valve | Non-PRV style (no integrated pressure relief) |
| Mounting Bracket | Not included (sold separately) |
Where It Works
The Watts FH4200BL12 Flowmatic housing is designed for residential point-of-entry or point-of-use filtration applications where you need a durable, chemically resistant housing for standard 10-inch cartridges. Compatible with sediment, carbon block, pleated polyester, and specialty cartridges in the 2.5" x 10" format. Common uses include whole-house sediment filtration, chlorine reduction before water softeners, well water pre-filtration, and under-sink systems requiring robust housing. The 1/2" NPT ports fit standard plumbing connections, and the reinforced polypropylene construction makes it suitable for environments with mild chemical exposure or aggressive water chemistry.
Original: $27.46
-65%$27.46
$9.61Description
Watts FH4200BL12 Core Specs
Construction & Features
| Model Number | Watts FH4200BL12 |
| Housing Color | Blue sump with black cap |
| Thread Design | Buttress thread for superior sealing and security |
| Sidewall Construction | Thick walls with heavy-duty reinforcing ribs |
| Chemical Resistance | Resists acids, alcohol, ammonia, oils, and plating solutions |
| Pressure Relief Valve | Non-PRV style (no integrated pressure relief) |
| Mounting Bracket | Not included (sold separately) |
Where It Works
The Watts FH4200BL12 Flowmatic housing is designed for residential point-of-entry or point-of-use filtration applications where you need a durable, chemically resistant housing for standard 10-inch cartridges. Compatible with sediment, carbon block, pleated polyester, and specialty cartridges in the 2.5" x 10" format. Common uses include whole-house sediment filtration, chlorine reduction before water softeners, well water pre-filtration, and under-sink systems requiring robust housing. The 1/2" NPT ports fit standard plumbing connections, and the reinforced polypropylene construction makes it suitable for environments with mild chemical exposure or aggressive water chemistry.















