Which Filter Does My Softub Need?
Softub has changed its filter format only a few times over the years.
If you bought your Softub in 2009 or later, you are going to purchase filter number 8553.
If you bought your Softub before 2009, you’ll purchase filter number 8555.
Filter 8553 has a wider mouth (5 1/2″) than filter 8555 (4″).
90% of Softub owners use the 8553 filter.
Please read the details for both filters below before you buy.
There Are No Returns, Refunds or Exchanges On Filters
Please take great care when selecting the right filter for your Softub: there are no returns, refunds or exchanges if you choose the wrong filter. Measure both your drain cover and your filter’s collar: they will boh measure either 5 1/2 inches or 4 inches in diameter. If your drain cover is missing, you will need to install replacement parts before you can attach your filter (see bottom).
If you have broken your Drain Cap / Suction Cover, you may have exposed the threading into which your suction cover used to twist. You will want to repair/replace your suction cover: please read the special section at the bottom of this page.
Whatever type or size of filter you need, we have you covered here at Softub Direct.
8553. If your Softub was made after July, 2009 and if your drain cap / suction cover measures about 5 1/2″ across, you will use this snap-on filter (the 8553). Its pleats are made with Microban, which combats the buildup of bacteria in your filter. This filter replaces the old Softub 5020 paper filter.
Your filter format is pictured at the right. If your drain cap and top filter flange both measure about 5 1/2″ in diameter, this is your snap-on filter.
8555. If your Softub was made before July, 2009 and if your drain cap / suction cover measures about 4″ across, you will use this snap-on filter (the 8555). This filter is used by about 10% of Softub owners and is only the second most popular Softub filter. Its pleats are made with Microban, which combats the buildup of bacteria in your filter. This filter replaces the old Softub 5015 paper filter.
Your filter format is pictured at the right. If your drain cap and top filter flange both measure about 4″ in diameter, this is your snap-on filter.
I Want To Fix My Broken Drain Cap / Suction Cover!
If your original drain cap was about 4″ in diameter, this Drain Cap / Suction Cover has been discontinued by Softub. Breaking this cap usually means that the cap has broken away from the threaded insert which may still remain screwed into your drain fitting. Softub now offers a VGB Drain Cap / Suction Cover Retrofit Replacement Kit, which is available both With and Without the new 8553 filter you will need to use with it.
The kit is easy to install and usually requires just unscrewing any remaing parts of your old drain assembly and screwing in the updated parts.
If your original drain cap was the newer VGB drain cap – about 5 1/2″ in diameter – you should have 2 suction covers, one on each side of the hydropack, near the bottom of your tub. If you have lost or broken one of these drain caps, you probably just need a 5 1/2″ Drain Cap / Suction Cover Replacement. If the white drain wall fitting into which the drain cap screws is broken (probably one of the screw-holding “tangs”), you will need to buy a new Softub Drain Wall Fitting.
This part screws easily into the threaded wall flange of the drain assembly.