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I am sorry to hear about the damaged screw on the aqualifter. We unfortunately are not familiar with the screw size directly however we are currently attempting to contact the manufacturer to find out for you! Please feel free to contact our support email in the coming days and we will be able to help you out! Thanks for your patience and understanding!
Replacement diaphragms for the Aqua Lifter Vacuum Pump. Aqua Lifter Vacuum Pump can pump water up to 30” high at a flow rate of 3½ gallons per hour. Ideal for use as a dosing pump for Kalkwasser, auto top offs, calcium reactors and other aquarium uses.
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$$$ saver By Marcus on 1/12/2016Marcus would recommend this product to a friendi was just about to replace my aqua lifter before i literally stumbled upon this ...with the help of the how to video i was able to install it pretty easy. just know that there is a left and right side to this thing so don't make the same mistake i did the 1st time
Works just like new By icbrg5 on 5/21/2015icbrg5 would recommend this product to a friendChanged out the leaky ones for a new set in about 15 minutes and pump was back to work as brand new. Bought a couple of them actually to keep on hand for future repairs if they are ever needed.
nice design By joe on 1/25/2014joe would recommend this product to a friendIt nice to see that the manufactures of this inexpensive pump still designed it to be serviced. Well done. I have more respect for this little pump now. Replacement works great!
A must have in your tool kit. By Melvin on 8/19/2013Melvin would recommend this product to a friendI keep at least one diaphragm on hand along with a back up Aqua Lifter.
I change them out about every 6 to 8 months and they never fail to work.
Make sure to use the filter for the pump its worth every penny..
Easier than Cleaning By Jack on 7/31/2013Jack would recommend this product to a friendWhile you can pull the diaphragm apart from the check valve assembly and clean it out, it is a huge pain in the butt. For $2.50, it is much easier to just pull the entire assembly out and replace it. There are only a few screws to take out and this simply pops right in to either side of the pump.
great not to throw a pump away By Ryan on 1/7/2013Ryan would recommend this product to a friendMy pump started to slow down quite a bit then stopped pumping water all together. I opened it up and attempted to clean it out but that didn't do much. I ordered one of these and the pump is brand new again. couldn't hurt to do this once every year or so.
NIce to fix and not replace By peter on 11/22/2012peter would recommend this product to a friendSuper easy to replace. Sure is nice to have a repairable product.