Which Filter Does My Softub Need?
Softub has changed its filter format only a few times over the years. For the past fifteen years, Softub filters have been easy-to-use Snap-On Filters, of two basic types.
If you bought your Softub with a Snap-on Filter in 2009 or later, you are going to purchase filter number 1 below; if you bought your Softub before then, you’ll purchase filter number 2.
Filter 1 has a wider mouth/flange than filter 2.
70% of Softub owners use filter number 1.
If you use a Snap-On Filter, please read the details for both filters below before you buy.
If you are using a Threaded/Screw-On Filter, you will need to purchase filter number 3 or 4 below. One is a thinner replacement filter that is easier to screw into the wall of your Softub, while the other is Softub’s full-width (6″) Threaded/Screw-On Filter filter, which was required by only a few early model Softubs.
If you have broken your Drain Cap / Suction Cover and want to replace it, 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.
1. 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. It is the most popular Softub filter, and is available both with Microban (the 8553) and without Microban (the 5020). Microban combats the buildup of bacteria in your 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.
2. 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. This is the second most common Softub filter, and is available both with Microban (the 8555) and without Microban (the 5015). Microban combats the buildup of bacteria in your 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.
3. If at some point you broke off your Drain Cap / Suction Cover, you are already using – or may want to use – a threaded filter that screws into the drain wall fitting mounted in the side of your Softub. The space available to maneuver a filter can be limited near the floor of your Softub, so it’s easiest to use this Thinner Screw-On Replacement Filter for the job. This filter works with all three sizes of Softub.
The filter’s format is pictured at the right. If your existing filter is 5″ in diameter and you screw your filter directly into the wall of your Softub, this is your threaded filter.
4. A very long time ago, Softub used a Threaded / Screw-On filter in some of its 140 and 220 Softubs. And before that, in a prototype Softub called the Chameleon, they also used this Softub 5000 Screw On Filter within a special embedded wall niche. It’s shorter than the other Softub filters, and it won’t fit Softubs that need a threaded filter for a broken drain cap.
This filter format is pictured at the right. If your existing filter is 6″ in diameter but has pleats of about 5 1/2″ in length, then this is your threaded filter.
If your existing filter doesn’t fit these measurements, do not buy this filter. A few Chameleons have an actual drain cap within their wall niche; if you own one of these, you should instead buy the Softub 5010 Snap-On Filter. If you don’t own the Chameleon and you have any doubt about which Threaded / Screw-On filter to use, just get the Thinner Screw-On Replacement Filter – it will work and save you a lot of trouble.
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 5020 filter you will need to use with it.
If Your Drain Cap Is 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 the drain cap, you probably just need a 5 1/2″ Drain Cap / Suction Cover Replacement. If the white drain wall fitting (which holds the drain cap) is broken (usually one of the screw-holding “tangs”), you will need a new Softub Drain Wall Fitting.