Replacement Bladder | 12L | Italian-Made
SKU: EA-PT-PT-12L-02
Ships: Australia-wide for $19.95 standard, or $29.95 express.
Free Click & Collect from our Wyong NSW showroom.
Same-day dispatch on orders before 12pm AEST.
In stock.In stock · ships from Wyong, NSW
Order today for fast dispatch
14-day returns on damaged or faulty items — returns policy
Questions? Call (02) 8772 8162 Mon–Thu 9am–3pm
- For tank size
- 12 L
- Material
- EPDM / BUTYL
- Origin
- Made in Italy
- Drinking water
- Compatible
Specifications
- Type
- Replacement bladder (membrane) for pressure tank
- Compatible with
- 12L Bestank-Solar pressure tank (BHT-12V-S)
- Material
- EPDM / BUTYL rubber composite
- Manufacture
- Italy
- Drinking water compatible
- Yes
- Hygienic certifications
- European Union + USA institutions
An Italian-made replacement bladder for the Bestank-Solar 12L pressure tank — the service part you swap when an existing 12L tank's membrane has failed but the shell, fittings, and pre-charge valve are still serviceable.
The Economics of Bladder Replacement
A pressure tank is essentially three things:
- Steel shell with mounting and connection ports — typically lasts 15-25 years
- Bladder/membrane — typically lasts 7-15 years depending on water chemistry, pressure cycling, and pre-charge maintenance
- Schrader-style pre-charge valve — typically lasts 15-25 years
Replacing only the bladder when it's the failed component preserves the long-lived parts and saves 60-70% versus buying a complete new tank. For residential users, this is straightforward maintenance; for commercial installations with multiple tanks in service, it's significant operating-cost reduction.
What This Specific Bladder Fits
This bladder is sized for the 12L tank format (Bestank-Solar BHT-12V-S, 250 × 370 mm). Bladders are tank-size-specific — a 12L bladder won't fit a 19L tank because the dimensions don't match.
If you're not sure of your tank size, check the model number on the tank label, or measure the tank's outside diameter and height. The 12L tank is 250 mm diameter × 370 mm height excluding fittings.
Why Italian EPDM/BUTYL
The Italian-origin EPDM/BUTYL composite is the global benchmark for drinking-water-grade pressure tank membranes. Two material properties drive this:
- EPDM delivers elasticity and pressure-cycling fatigue resistance — the bladder stretches and compresses millions of times across its service life without splitting
- BUTYL delivers gas impermeability — air doesn't leak from the pre-charge side, water doesn't migrate across into the air side
Lower-grade bladders fail by either splitting (EPDM fatigue) or losing pre-charge (BUTYL permeability). The Italian composite addresses both.
Hygienic certifications by European Union and USA institutions confirm material safety for direct drinking-water contact.
Specifications
- For: 12L pressure water tank (Bestank-Solar BHT-12V-S)
- Material: EPDM / BUTYL rubber
- Manufacture: Made in Italy
- Drinking water compatible: Yes
- Certifications: EU + USA hygienic certifications
Key features
- Italian-made replacement bladder for 12L Bestank-Solar pressure tanks
- EPDM/BUTYL rubber — global drinking-water standard
- Drinking-water compatible — direct water contact safe
- Hygienic certifications from EU and USA institutions
- Saves 60-70% vs full tank replacement
- Original-equipment specification
Recommended for
- Bestank-Solar 12L pressure tank with bladder failure symptoms
- Tanks cycling frequently due to lost pre-charge
- Ruptured bladder repair
- Preventive maintenance after 7+ years of operation
Compliance & certification
Replacement bladder for pressure tank — downstream-of-meter component, not subject to WaterMark. Drinking-water hygienic certifications confirmed from European Union and USA institutions per manufacturer.
Ready to order?
Order before 12:00pm AEST on a business day for same-day dispatch from Wyong NSW. See shipping details.
Frequently bought together
More pressure tanks
What customers say
5.0 from 74 customer reviews
- Google
“Best thing I have ever got. Enviro Aqua have now done the water filters at both mine and my mum's house and it's the best thing I've ever had done. Great people and cost effective. Thank you.”
- Google
“I had a great experience with Enviro Aqua — what you see is truly what you get, and most of all not misleading like other shops I have experienced. These guys are honest and humble.”
Australian-owned
Real Wyong NSW warehouse and showroom. ABN 24 638 197 734. Proper tax invoices on every order.
Same-day dispatch
Orders placed before 12pm AEST on a business day ship the same day from Wyong. Tracked Australia-wide.
No proprietary lock-in
Standard 10" and 20" Australian housings. Buy replacement cartridges from any supplier.
Replacement Bladder | 12L | Italian-Made
$35.00 AUD