Zodiac Duralife Diaphragm | T5 Duo, T3 & X7 | Genuine Replacement
A worn or cracked diaphragm is the most common reason a Zodiac suction cleaner loses power, moves erratically, or stops cleaning effectively. The Zodiac Duralife Diaphragm is the genuine replacement part designed specifically for the T5 Duo, T3, and X7 suction cleaners, restoring full water flow and reliable pool coverage.
Product Specifications
| Brand | Zodiac |
| Compatible Models | Zodiac T5 Duo, T3, X7 |
| Part Type | Genuine Zodiac replacement |
| Weight | 0.5kg |
Why Replace Your Diaphragm?
The diaphragm is the heart of your Zodiac suction cleaner. It flexes thousands of times per cleaning cycle, and over time it hardens, cracks, or tears. Signs it needs replacing include:
- Cleaner moving slowly or in circles
- Weak or inconsistent suction
- Cleaner lifting off the pool floor
- Visible cracking or stiffness in the diaphragm
Replacing the diaphragm is the quickest and most cost-effective fix before considering a full cleaner replacement.
Not sure if this fits your cleaner? Contact us with your cleaner model and we will confirm compatibility before you order.
How to Replace the Diaphragm
- Remove the cleaner from the pool and disconnect from the hose
- Turn the cleaner upside down and locate the diaphragm housing
- Unclip or unscrew the retaining ring to release the old diaphragm
- Remove the worn diaphragm and clean the housing
- Seat the new Duralife Diaphragm firmly into position
- Reattach the retaining ring and reconnect to the hose
- Return to pool and test suction performance
No specialist tools required. Most replacements take under 10 minutes.
Recommended Accessories
- Zodiac Cassette Diaphragm T3/T5/G2 - full assembly replacement if the cassette body is also cracked or damaged.
- Zodiac Twist and Lock Hoses 1m 5-Pack - replace worn hose sections at the same time.
Frequently Asked Questions
Q: How do I know if my diaphragm needs replacing?
A: The most common signs are reduced suction, erratic movement, or the cleaner lifting off the pool floor. Remove the cleaner and inspect the diaphragm for cracks, tears, or hardening. If it no longer flexes easily, it needs replacing.
Q: How long does a Zodiac diaphragm last?
A: With regular use, a diaphragm typically lasts 1 to 3 seasons depending on pool chemistry, UV exposure, and run hours. Keeping your water balanced and storing the cleaner out of direct sunlight when not in use will extend its life.
Q: Is this a genuine Zodiac part?
A: Yes - the Duralife Diaphragm is a genuine Zodiac replacement part. We recommend using genuine parts to maintain warranty coverage and ensure correct fit and performance.
Q: Will this fit my Zodiac T5 (non-Duo)?
A: This diaphragm is confirmed for the T5 Duo, T3, and X7. If you have a standard T5 or another Zodiac model, contact us to confirm compatibility before ordering.
Q: Can I replace just the diaphragm or do I need a full cassette?
A: In most cases you can replace the diaphragm alone, which is the most cost-effective option. If the cassette body is also cracked or damaged, the Zodiac Cassette Diaphragm is available as a complete assembly replacement.
Q: Is this product covered by a warranty?
A: Yes - genuine Zodiac parts are covered under Zodiac's standard manufacturer warranty. Retain your proof of purchase. Contact us if you experience a fault within the warranty period.
Pickup and Delivery
Perfect Pools Service Warehouse - 15C Douglas Alexander Parade, Albany, Auckland
Hours: Mon-Fri 9am-4pm | Sat 10am-2pm
NZ-wide delivery available. Charges calculated at checkout.
Questions? Email perfectpoolsnz@gmail.com or visit our contact page.
