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Extended holiday returns
FREE refund/replacement until Jan 31, 2027 Learn more
FREE refund/replacement until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 7 left in stock, order soon!
Arrives
Thursday, Nov 12
At a glance
- Condition
- New
- Model
- PT1636
- Dimensions
- 1.5 x 3.8 x 6.3 in; 2.88 oz
- Weight
- 2.88 oz
- Color
- Black
- Material
- Stainless Steel
- Style
- Diaphragm
Features 4
- Repair module for the laguna aeration kit
- Aeration Kit enhances pond water quality
- Easy to replace
- Replace when diaphragm becomes week and pumps less air
Description
The Laguna Optima Repair Module is the replacement module for the Laguna Aeration Kit. The Laguna Aeration Kit enhances pond water quality all year round. It works to prevent pond surfaces from completely freezing over in winter. This kit should be changed annually or as the diaphragm becomes week and pumps less air.
Specs 20
| Brand | Hagen |
|---|---|
| Color | Black |
| Material | Stainless Steel |
| Style | Diaphragm |
| Power Source | Battery Powered |
| Item Weight | 2.88 ounces |
| Global Trade Identification Number | 64 |
| Number of Packs | 1 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Number of Items | 1 |
| Product Dimensions | 1.5 x 3.8 x 6.3 inches; 2.88 ounces |
| Item model number | PT1636 |
| Material Type | Stainless Steel |
| Product Style | Diaphragm |
| Brand Name | Hagen |
| Model Number | PT1636 |
| UPC | 015561216364 |
| Unit Count | 1 Count |
| Specific Uses For Product | Pond Maintenance, Cold Weather Management |
| Manufacturer Part Number | PT1636 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 12
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Hit quality
Fits right and working perfect
Reviewed in the United States on December 10, 2025 by Saulo Tamarez
Fits perfectly and cheaper than the old kit of individual parts
Not only is it a great replacement for the pump, it's actually cheaper than the old kit with the individual components was, and here you don't have to assemble anything, and all the parts are new. I guess the Chinese factory figured out that it was easier and cheaper to sell the assembly rather than make kits out of the separate parts, but that works for me. This new assembly doesn't have the dab of adhesive on the nuts or screws like the OEM, but I just use a drop of UV cure resin during assembly, but they probably wouldn't vibrate loose anyhow. I do wish the cup diaphragm material was a longer lasting rubber or improved design that doesn't end up cracking after a year or two of full-time use, but it's still longer lasting than the more expensive, non-repairable heavy-duty looking aluminum linear pumps that I kept buying before, which used a lot more power than this pump. And this pump does put out a full 4psi, so can be used with deeper air stones in a pond.
...
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Reviewed in the United States on August 6, 2024 by qualsite
Quick fix for 1/4 cost of replacement
Perfect fit, easy replacement, for my Optima fish pond bubbler (Art. # A-807), at 1/4 the price of replacing the whole pump. Based on the manufacturer date on the pump the original ran 10 years, constantly 4-6 months a year, outside, pseudo covered, in Virginia winters. Let's hope this replacement part lasts as long as the original.
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Reviewed in the United States on May 1, 2025 by Bwana Mkubua
Works great
My laguna air pump (made by optima model PT1630) was not working well. Opened it up and found torn diaphragm. This laguna repair module was easy to replace and saved me $$ from not having to buy a new pump. It didn't come with any warranty. Lets see how long it lasts.
Reviewed in the United States on December 31, 2018 by Greg Matt
Fit and works perfectly!
I was a bit skeptical when I decided to buy this..I was reduced to only one output form the pump instead of two. I thought that would be an issue, however after installing it and using for several months now I can say with 100% certainly that I made the CORRECT decision and it definitely is not a problem!! It fit perfectly and functions flawlessly. I only wish I had bought it sooner instead of waiting as long as I did. I also wish I had purchased an extra. Lastly I wish they made replacement kits for all of my air pumps! Thank you and Journey well
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Reviewed in the United States on November 4, 2017 by Amazon Customer
Needed replacement after 18 months
One of the rubber diaphragms in my Optima pump failed after 18 months of use. This repair kit was easy to install and I was impressed at the high quality of the Optima pump internals. I have many pumps and have rebuilt many of them. This one was quick and easy. One star deducted for the pump failing so quickly, I have Tetras still going after 3 years. In all fairness, many of the cheap pumps fail in less than 1 year.
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Reviewed in the United States on May 11, 2017 by Everyday Guy
Works like new and saved me money.
Was about to purchase a new pond aerator till I stumbled across this repair module for my current one. Was easy to replace and now the aerator works just like the day I bought it. Saved me from spending money on a new one and couldn't be happier with the results.
Reviewed in the United States on April 17, 2018 by susan f.
Was about to replace my crappy Optima pump when I saw this replacement cartridge pop ...
Was about to replace my crappy Optima pump when I saw this replacement cartridge pop up, glad I saw it. Easy to install and the pump works like new again. The circular black rubber diaphragms on each side of the pump are what go bad, too bad they don't sell just those.
Reviewed in the United States on July 18, 2018 by Mechanic