Diaphragm Pump 3GPM 11.36 L/min 4-Chamber Water Pump Pressure Switch
Not satisfied? Return it within 14 days for a full product refund. Return shipping applies for change-of-mind returns. View policy
This diaphragm pump delivers consistent water pressure and flow, eliminating low pressure issues for reliable daily use in caravans, boats and mobile applications. The automatic pressure switch adjusts between 40-100 PSI on demand, so water flows only when needed, saving energy whilst the quiet copper motor won't disturb your work or rest.
- 4-chamber diaphragm pump with 3.0 GPM (11.36 L/min) flow rate at 55 PSI
- Adjustable automatic pressure switch, 40-100 PSI range
- Pure copper motor with noise-reducing base for quiet operation
- Overheat and overload protection with dry-run capability
- Built-in check valve bypass switch for continuous supply if pump fails
- Standard 1/2" MNPT inlet and outlet connections
- CE and RoHS certified, tested over 200,000 cycles
- Suitable for RVs, boats, campers and food trucks
📦 Shipping & Delivery
Free Shipping on orders $500+. For orders under $500, a flat postage fee applies based on order weight (from $4.95).
Orders are dispatched within 1–3 business days of payment confirmation. You will receive a tracking email once dispatched.
Standard delivery: 3–7 business days (metro). Regional/WA/NT may take slightly longer.
🔁 Returns & Refunds
We offer 14-day returns on all items.
To be eligible, items must be returned in original, unused condition with all original packaging.
To start a return: email hello@myhappygift.com.au with your order number.
Refunds are processed within 5–10 business days of receiving the returned item.
🛡️ Warranty
All products include a 12-month manufacturer's warranty.
Covers manufacturing defects and faults under normal use conditions.
Does not cover accidental damage, misuse, or normal wear and tear.
To make a warranty claim, email hello@myhappygift.com.au with your order number and photos of the fault.
❓ FAQs
How long does delivery take?
Orders dispatch in 1–3 business days. Standard delivery 3–7 business days.
Do you ship to all Australian states?
Yes, we ship Australia wide including WA, NT, and all regional areas.
How do I track my order?
A tracking link is emailed once your order is dispatched.
How do I contact support?
Email hello@myhappygift.com.au or call (03) 9961 6069.
Mon–Sat, 9:00 AM – 10:00 PM AEST. We respond within 24 hours.
Are your products covered by warranty?
Yes, every product includes a 12-month manufacturer's warranty.
Curated for Quality
Every product hand-selected to meet our quality standards before it reaches your home
Fast Australian Dispatch
Orders dispatched within 1–3 business days from our Australian warehouses
Responsive Local Support
Australian-based team available Mon–Sat, 9am–10pm AEST. Reply within 24 hours
Backed by Warranty
Every product includes a 12-month manufacturer's warranty — shop with confidence
