Microline Filters S7125 and S7128 are Different

Customer Writes: I have an aquapro TFC-4 RO system installed in my home. I need replacement filters ( S7125 and S7128 ) and am having a hard time locating them. I see filters labeled as for TFC-4 on your website, but I'm not sure if they are what I'm looking for. Can you please confirm if they are compatible?

*As shown in the photo below, the two styles are very different.

The third party unit ( there are about a dozen proprietary "Brands" which uses a Microline S7125 GAC Post, and S7128 carbon sediment prefilter which you will NOT Find on our website. These are not directly interchangeable, but there is a way to "adapt" your system for use of "standard", long, thinner versions that are more readily available, and generally less expensive to purchase.

The dimensions of S7125 and S7128 filter are 2 and 3/8 inches in diameter and 9.5 inches long (if you count the spout at the top.)

* We stock and sell the common Microline 11 1/2" length replacement filter cartridges. To adapt from having to use the shorter proprietary version, and start using the longer "standard" version, you must replace the sump housings ( change all 3 if changing the Membrane too ) with longer version of the housing ( our PN S7029-09 ). see Microline New Sump Housing S7029-09

Here is the Short Fatter Filter ( S7125 ) compared to the Longer Microline S7025 we sell:

Water Flowing to Salt Tank after replacing Brine Valve Piston Assembly Fleck part 60032

Hi , I just received a new repair kit # 56PSKIT and have installed it, however it now puts too much water into the brine tank, so much so the float in the brine tank rises and shuts it off. What have I done wrong? I thought I followed the instructions to a T. Please advise

** Perhaps when you replaced the Brine Valve Piston Assembly ( 60032 ) you accidentally pulled out the oring ( 13302 ) that sits in the bottom of the hole which the valve is installed in.

Or at least the oring came out 1/2 way, and you have jammed the Brine Valve onto the oring and it is not sitting flat.

** Remove the Brine valve and look in the hole for this oring. If you do not see it, look on the floor around the unit. If you have lost it, you can use the one that is on your old Brine Valve, as there is another 13302 oring on the Brine Valve ( it is on the white plastic portion of the assembly ). And of course we sell new ones at Softenerparts.com.

Handling Charges in the U.K.

Many thanks for the excellent service. I believe my package is waiting for me to collect it from the Post Office. The reason for this note is that you may wish to draw to the attention of folk buying from the UK, the fact that our Post Office charges approx $16 to cover their handling of the package through our customs!!!

Quite a shock to me having paid only $55 for the parts. I'm still happy with the service and your prices. Keep up the great work.

Update: The post office charges for collecting any duty and taxes due in the UK. I was only charged tax – around $9 which I'm happy to pay but the post office charges $16 for collecting the tax for the inland revenue (customs). Goods under $36 (£18) don't attract the charges.