
Watts (F164003) Dual Housing and RO Membrane Filter Housing Wrench
Watts F164003 Housing Wrench Details
| Manufacturer | Watts |
| Model Number | F164003 |
| Length | 8.5 inches |
| Width | 4 inches |
| Wrench Type | Dual-purpose: RO membrane housing and standard filter housing |
| Construction | Durable plastic with molded grip surfaces |
| Application | Reverse osmosis membrane housings and dual filter caps |
| Color | Red |
How to Use the Watts F164003 Wrench
- Shut off water supply to the reverse osmosis system or filter housing and relieve system pressure by opening the faucet or using the pressure release button if available.
- Select the appropriate end of the wrench based on your housing size. The larger opening fits standard dual filter housings, while the smaller end is designed for RO membrane housings.
- Place the wrench over the housing cap, ensuring the interior teeth engage fully with the ridges or flat surfaces of the cap.
- Turn counterclockwise with steady, even pressure to break the seal and loosen the housing. Avoid jerking motions that could crack the housing.
- Once loosened, remove the wrench and finish unscrewing the cap by hand to access the membrane or filter cartridge.
Works with Watts and Most Standard RO Systems
The Watts F164003 wrench is designed to fit Watts reverse osmosis membrane housings and standard dual filter housing caps found in most residential RO systems. The dual-sided design accommodates different housing diameters, making it compatible with Watts Premier, APEC, iSpring, and other brands using standard 3-inch and 4-inch membrane housings. This wrench is particularly useful for 10-inch and 20-inch housings where hand-tightening creates seals that are difficult to break without proper leverage.
Watts F164003 Housing Wrench Details
| Manufacturer | Watts |
| Model Number | F164003 |
| Length | 8.5 inches |
| Width | 4 inches |
| Wrench Type | Dual-purpose: RO membrane housing and standard filter housing |
| Construction | Durable plastic with molded grip surfaces |
| Application | Reverse osmosis membrane housings and dual filter caps |
| Color | Red |
How to Use the Watts F164003 Wrench
- Shut off water supply to the reverse osmosis system or filter housing and relieve system pressure by opening the faucet or using the pressure release button if available.
- Select the appropriate end of the wrench based on your housing size. The larger opening fits standard dual filter housings, while the smaller end is designed for RO membrane housings.
- Place the wrench over the housing cap, ensuring the interior teeth engage fully with the ridges or flat surfaces of the cap.
- Turn counterclockwise with steady, even pressure to break the seal and loosen the housing. Avoid jerking motions that could crack the housing.
- Once loosened, remove the wrench and finish unscrewing the cap by hand to access the membrane or filter cartridge.
Works with Watts and Most Standard RO Systems
The Watts F164003 wrench is designed to fit Watts reverse osmosis membrane housings and standard dual filter housing caps found in most residential RO systems. The dual-sided design accommodates different housing diameters, making it compatible with Watts Premier, APEC, iSpring, and other brands using standard 3-inch and 4-inch membrane housings. This wrench is particularly useful for 10-inch and 20-inch housings where hand-tightening creates seals that are difficult to break without proper leverage.
Original: $11.00
-65%$11.00
$3.85Description
Watts F164003 Housing Wrench Details
| Manufacturer | Watts |
| Model Number | F164003 |
| Length | 8.5 inches |
| Width | 4 inches |
| Wrench Type | Dual-purpose: RO membrane housing and standard filter housing |
| Construction | Durable plastic with molded grip surfaces |
| Application | Reverse osmosis membrane housings and dual filter caps |
| Color | Red |
How to Use the Watts F164003 Wrench
- Shut off water supply to the reverse osmosis system or filter housing and relieve system pressure by opening the faucet or using the pressure release button if available.
- Select the appropriate end of the wrench based on your housing size. The larger opening fits standard dual filter housings, while the smaller end is designed for RO membrane housings.
- Place the wrench over the housing cap, ensuring the interior teeth engage fully with the ridges or flat surfaces of the cap.
- Turn counterclockwise with steady, even pressure to break the seal and loosen the housing. Avoid jerking motions that could crack the housing.
- Once loosened, remove the wrench and finish unscrewing the cap by hand to access the membrane or filter cartridge.
Works with Watts and Most Standard RO Systems
The Watts F164003 wrench is designed to fit Watts reverse osmosis membrane housings and standard dual filter housing caps found in most residential RO systems. The dual-sided design accommodates different housing diameters, making it compatible with Watts Premier, APEC, iSpring, and other brands using standard 3-inch and 4-inch membrane housings. This wrench is particularly useful for 10-inch and 20-inch housings where hand-tightening creates seals that are difficult to break without proper leverage.











