Hydronix FW-3 Filter Wrench Fits HF45 4.5" OD Filter Housings Big Blue White

Save your hands from the hassle of unscrewing tight 4.5" od Water filter housings with the Hydronix FW-3 Filter Wrench.
Made from strong and durable plastic, the Hydronix FW-3 Filter Wrench is ideal for opening stuck filter housings.
specifically designed to loosen the sumps of 4.5-inch outer diameter (OD) water filter housings. It is commonly used for "Big Blue" style whole-house filtration systems where filter lids can become stuck or difficult to turn by hand over time.

Hydronix FW-3 Specifications:

• Part Number: FW-3
• Made from durable plastic
• Fits 10" and 20" 4.5" od Big Blue style Housings
• Excellent for opening severely stuck filter housings

While optimized for Hydronix HF5, the FW-2 wrench is known to fit several other standard 2.5-inch commercial-style housings, including:

• Pentek/Ametek
• American Plumber
• Watts
• Liquatec
• Culligan
• Ametek
• USFilter
• Plymouth

Usage Tips

• Avoid Over-tightening: Use the wrench primarily for loosening; hand-tightening is usually sufficient for a seal.
• Lubrication: Applying a food-grade lubricant to the housing O-ring can make future removals significantly easier.
• Check Model: Ensure you have a "slim" housing; larger "Big Blue" housings (4.5" OD) require the Hydronix FW-3 wrench instead.