
Water Pressure Pump | Booster
SKU: EA-PT-BOOST-03
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
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14-day returns on damaged or faulty items — returns policy
Questions? Call (02) 8772 8162 Mon–Thu 9am–3pm
- Capacity
- 400 GPD
- Voltage
- 24V DC
- Power
- 65W
- Flow @ 80 PSI
- 2.5 LPM
Specifications
- Type
- RO booster diaphragm pump
- Brand / model
- DengYuan TYP-4000NA
- Capacity
- 400 GPD
- Voltage
- 24V DC
- Power
- 65W
- Working pressure
- 80 PSI
- Maximum pressure
- 160 PSI
- Bypass pressure (adjustable)
- 140 PSI
- Flow rate at 80 PSI
- 2.5 LPM
- Current draw at 80 PSI
- 2.5 A
- Outlet connection
- 3/8" NPT
- Certifications
- RoHS, CE
- Requires
- 220V AC → 24V DC transformer (sold separately)
The DengYuan TYP-4000NA — a 400 GPD RO booster pump for the higher-output residential and commercial RO systems where the smaller 50 GPD booster doesn't have the headroom. Adjustable bypass pressure, 24V DC operation, and DengYuan's well-known build quality from Taiwan.
When You Need 400 GPD Instead of 50 GPD
The standard 50 GPD RO booster pump handles residential RO systems producing 50–75 GPD of permeate. That covers most household drinking-water installations.
The TYP-4000NA scales up significantly:
- 400 GPD output rating — handles RO systems with 4–8× the permeate output of a residential setup
- 2.5 LPM flow at 80 PSI working pressure
- Bypass pressure 140 PSI (adjustable) — protects the pump from over-pressurisation
- 160 PSI maximum pressure rating
For commercial drinking-water installations, multi-membrane RO systems, light industrial water treatment, and the larger residential RO setups (e.g. whole-house RO for a high-mineral supply), the TYP-4000NA is the booster pump.
Why DengYuan Specifically
DengYuan (Taiwan) is the established premium-tier RO pump manufacturer — their diaphragm pumps are the reference design that cheaper Chinese manufacturers copy. The TYP-4000NA carries RoHS and CE certifications, has a documented service life across thousands of installations, and is the default choice when a serious installer specifies a 400 GPD booster.
Specifications
- Model: DengYuan TYP-4000NA
- Capacity: 400 GPD
- Voltage: 24V DC
- Power: 65W
- Working pressure: 80 PSI
- Maximum pressure: 160 PSI
- Bypass pressure (adjustable): 140 PSI
- Flow at 80 PSI: 2.5 LPM
- Current at 80 PSI: 2.5 A
- Outlet: 3/8" NPT
- Pump type: diaphragm, bypass pressure adjustable
- Certifications: RoHS, CE
Power Requirements
24V DC operation requires a 220V AC to 24V DC transformer (sold separately). For a complete RO booster pump installation, the kit typically needs:
- This pump
- 220V AC → 24V DC transformer
- 24V high-pressure switch on the outlet
- 24V low-pressure switch on the inlet
Where This Pump Fits
- 400 GPD commercial RO systems — restaurants, cafés, dental practices, small businesses
- Multi-membrane residential RO for high-mineral or PFAS-affected supplies
- Whole-house RO installations producing significantly more than 50 GPD
- Light-industrial water treatment at small commercial scale
- Replacement of a failed TYP-4000NA in an existing commercial installation
Key features
- DengYuan TYP-4000NA — premium Taiwanese RO booster pump
- 400 GPD capacity — 4-8× the output of a residential 50 GPD pump
- 24V DC operation, 65W power
- Adjustable bypass pressure (140 PSI default)
- Maximum pressure rating 160 PSI
- 2.5 LPM flow at 80 PSI working pressure
- 3/8" NPT outlet — commercial-grade connection
- RoHS and CE certified
- Diaphragm pump construction
Recommended for
- Commercial RO systems at 400 GPD production rate
- Multi-membrane residential RO for difficult water supplies
- Whole-house RO installations producing > 50 GPD
- Light-industrial water treatment at small commercial scale
- Replacement of a failed TYP-4000NA in an existing installation
Compliance & certification
24V DC RO booster pump — installed downstream of meter as part of RO system, not subject to WaterMark. RoHS and CE certified per manufacturer.
Ready to order?
Order before 12:00pm AEST on a business day for same-day dispatch from Wyong NSW. See shipping details.
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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.

Water Pressure Pump | Booster
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