Description
40mm (1.5") SpaFlex® Flexible PVC Pressure & Suction Pipe
Premium flexible PVC hose for spas, hot tubs, pools, and irrigation. Made in the USA by leading manufacturers of spiral-reinforced flexible PVC, designed for reliable pressure (Class 18) and vacuum/suction applications. This is not the low-quality import hose that often fails sizing and leaks—this product is built for long service in Australian conditions. Tip: Also suitable as vacuum pipe for spa/pool suction lines.
Fits standard PVC/CPVC pressure fittings: true 40 mm nominal size with approx. 48 mm OD. Glues into standard PVC pressure socket fittings.
Key Features
- USA-Made quality flexible PVC with spiral reinforcement for tight bends and fewer fittings.
- Class 18 rating for pressure lines; equally suitable for vacuum/suction runs.
- Chemical & UV resistant* for spa/pool environments; built for durability.
- Schedule 40 fitting compatible—installs like rigid pressure pipe, but bends to route around obstacles.
- Common 40 mm size used across most spa & pool brands (pumps, jets, blowers, suctions, returns, water features).
- Accurate sizing that meets Australian standards—unlike many poorly sized imports.
Available Lengths
| Length | Notes |
|---|---|
| 0.4 m (400 mm) Pre-cut | Multiples supplied as separate pieces (e.g. 4 × 0.4 m = 4 pieces) |
| 3 m | Straight cut for most installations |
| 15 m roll | Best value for larger jobs |
Tech Specs
- Nominal size: 40 mm (1.5")
- Outside diameter (OD): ~48 mm
- Class: 18 (pressure)
- Material: Spiral-reinforced flexible PVC
- Compatibility: Standard PVC/CPVC pressure (Schedule 40) socket fittings
- Applications: Pumps, jets, blowers, suctions, returns, water features, irrigation, vacuum pipe
- Country of origin: USA
Installation Notes
-
Warm to flex: Use mild heat (e.g. heat gun) to increase flexibility. In colder temperatures pipe can be quite stiff.
- Primer + Flexible-PVC Glue required: Use a proper primer and a Flexible-PVC adhesive. Regular rigid PVC glue will eventually leak because it does not flex or fill properly.
- *UV/Sunlight warning: Do not leave exposed to direct sunlight for long periods, as discolouration will occur. At minimum, cover or paint the pipe if installed outdoors.
-
Gluing: Ensure clean, square cuts; glue, then twist & hold joint until initial set.
- Support pipe: Failure to properly support pipe can cause failure of joints and fittings. As pipe softens at temperature, they can sag!
Why USA-Made vs. cheap imports?
- Correct sizing & standards: True 40 mm nominal sizing for Australian fittings.
- Better materials & reinforcement: Resists collapse, cracking, and kinking.
- Fewer leaks, longer life: Designed for continuous spa/pool duty.
Note for non-plumbers: PVC pressure pipe uses nominal names that do not equal the measured OD. This 40 mm pipe measures ~48 mm OD. Please review our PVC Pressure Pipe Dimensions Guide before ordering.
Specs apply to Spa-Flex® flexible PVC hose. Working pressures are for open-end applications only.
| Nominal Size | Approx OD | Rec. WP @ 72°F | Design Burst @ 72°F | Approx Burst @ 140°F | Rec. Min Bend Radius | Approx Weight |
|---|---|---|---|---|---|---|
| 1/2" | 0.84" (~21.3 mm) | 100 psi | 400 psi | 180 psi | 2" (~50.8 mm) | 0.15 lbs/ft |
| 3/4" | 1.05" (~26.7 mm) | 100 psi | 400 psi | 180 psi | 2" (~50.8 mm) | 0.23 lbs/ft |
| 1" | 1.315" (~33.4 mm) | 100 psi | 355 psi | 180 psi | 3" (~76.2 mm) | 0.31 lbs/ft |
| 1-1/4" | 1.66" (~42.2 mm) | 80 psi | 250 psi | 120 psi | 4" (~101.6 mm) | 0.40 lbs/ft |
| 1-1/2" (40 mm) | 1.90" (~48.3 mm) | 65 psi | 200 psi | 100 psi | 5" (~127 mm) | 0.49 lbs/ft |
| 2" (50 mm) | 2.375" (~60.3 mm) | 60 psi | 175 psi | 90 psi | 6" (~152.4 mm) | 0.68 lbs/ft |
| 2-1/2" (65 mm) | 2.875" (~73.0 mm) | 60 psi | 175 psi | 90 psi | 7" (~177.8 mm) | 0.95 lbs/ft |
| 3" | 3.50" (~88.9 mm) | 60 psi | 175 psi | 90 psi | 8" (~203.2 mm) | 1.28 lbs/ft |
Source: Pacific Echo Spiralite® Spa-Flex® 710-00 technical data. *
* Published working pressures are for open-end applications only.