***** Play It Koi is rated 4.9 out of 5 stars, based on 947 reviews!



Hakko Diaphragm Kits

10 Reviews HK-D25

Matala

Sale price $31.00 Regular price $39.00

Size

Our rebuild diaphragm kits are simple to install. They include diaphragms to fix both sides. Refer to our troubleshooting section for directions on proper replacement procedure.

Tools you will need:

- 1 medium Phillips screwdriver

- 1 small Phillips screwdriver

- 1 medium pair of pliers

Note: If your diaphragms are blowing out frequently, you most likely have an excess back pressure problem in your design. Check that your air delivery tube is large diameter and no kinking is occurring. Check your air diffusers for clogging. Ceramic style air stones need cleaning with muriatic acid every 3 months typically. Check that the number of air diffusers is sufficient to handle the air output of your Hakko pump. Too few diffusers will create excess back pressure. Read the article titled "Heat Control for Air Pumps"

View Instruction Manual for Hakko Diaphragm Repair kits (PDF)

Customer Reviews

5 Based on 10 Reviews
5 ★
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10
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Filter Reviews:
PS
01/25/2020
Paul s.
United States

very easy to replace

The service was very fast and customer service was very nice. The Diaphragm Kit is factory original. Replacing the diaphragms is very easy - this is my second one and they last about a year.

LG
08/28/2019
Linda G.
United States United States

Perfect

Perfect fit. Easy to install

AV
08/08/2019
aaron v.
United States United States

Excellent service

Pump parts showed up with incredible efficiency and expediency and were exactly as described.

aaron v. verified customer review of Hakko Diaphragm Kits
RV
08/06/2019
Ryan V.
United States United States

perfection

this fit just perfectly in our Hakko 80L pump. appreciate you!

AD
07/24/2019
Amy D.
United States United States

Easy replacement

Fast shipping from Play It Koi - arrived in 2 days


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