Culligan SW-2 3/4-Inch Housing Spanner Wrench

Worked as it should, no problems

Kind of lightweight but fits properly

I've been through two of these so far. If you need one of these, it's because your filter is on too tight to remove by hand. That means you'll need to apply some force with this wrench, but they are made from flimsy plastic so they end up breaking.Price-wise, these are inexpensive enough that breaking one isn't the end of the world, but it gets annoying having to deal with inconvenience of your wrench breaking as you are trying to change the filter and then having to wait for a replacement to arrive. I guess I could but a stack of these to keep around as they break, but I hate to throw my money at a poorly made product.I ended up grabbing a strap wrench from my tool box when the Culligan wrench broke today (while I was applying very little force) and the strap wrench worked great. I'd recommend grabbing one of those instead, which you may find useful in the future for other things around the house, or pick up one of the metal housing wrenches you can find on Amazon, which cost a bit more but look like they will get the job done for years and year.

My old filter wrench had 6 teeth and gripped better.

My son was a bit heavy handed with my old one, and we had been using a heavy duty wrench to unscrew the filter housing. I started to get nervous that it would eventually crack the plastic. I should have ordered this a long time ago!

I have several water filters in my house and broke the cheap factory wrench. The ones at the hardware store are poorly made. This is the cheapest one available on Amazon and is sturdy and well constructed. Definitely worth the price.For the price paid, you can't go wrong!Best part is it Ships from and sold by Amazon.com. Free fast shipping and no tax.

Fit my Culligan/Ametek tan or skin tone filter housing wrench is Pentek SW-2 four lug and two wrenches are stronger/easier than one along with an 18” pvc pipe for torque extension. Housing is 4.5” ranges from 4.5 to 4.75 max od on wrench. Upper is 5” OD (4.5” ID) and lower/bottom end OD 4” 3.5”) unit is 10” long, cogs are .5” thick and roughly 1.5” between cogs/tines/lugs on the housing near the middle at zero depth not the outside diameter. Not sure if 4, 6, or 8 splines, but this fit ID nicely and worked. This old unit also needed a 4” OD Culligan OR34-A O-ring twin pack labelled A (4”) and install requires FDA approved scuba camera or Dow silicone O-ring grease. The filter 2.5” x 10” also fit well Whirlpool WHKF-GD05 (____-6003 stamped at top of filter) comes in 2 pack or discounted at Lowes as well for quantity 6 each purchase or 2.5”x10” equivalent OK. Best to have all those parts on the job before staring along with a gallon of water and bottle brush for rinsing while water is off.

Make sure to measure your filter housings before ordering. This came up as a search result and reviews lead me to think it was a standard size for most RO systems. Even though my filters take the same cartridges as the culligans, the out housing is apparently much bigger than on my system. For $4, I will donate to the thrift store. I give three stars because it doesn't seem like very sturdy plastic and I probably would have broken it like so many buyers.

Great gadget, my husband really appreciates it when changing filters in Pentek 150071 3/4-Inch 10-Inch Standard Clear Filter Housing and the other similar filter housing that we have (can`t remember the brand on that one). I purchased 2 of these spanners so they could be hung close to each unit, which are in different areas. Sure wished I had found these sooner.

A must have for the Pentek filter housing and reasonable price.

this tool work wellm you need it!!

Perfect fit.

OK tool to replace the filter cartridge on our Whole House water filter. Did not know that one came with the water filter so I did not need to buy the extra one anyway.