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John Guest 3/8″ Tube per metre



3/8″ John Guest LLDPE tube (Price quoted per metre)

Approved for use with potable (drinking) water. This tube is rated to 150 psi (6 bar) at 150 degrees Fahrenheit (65 Celsius) That’s 30 psi (5 bar) higher than the 12 mm John Guest tube that is sold in boat and caravan supplies stores. This tube curves to a fairly tight radius especially when gently heated with a heat gun or hair dryer. It can be more easily routed than its 12 mm version. It is suitable for the Heliatos Solar Water Heating Panel when it is no more than 5 meters from the panel to the hot water tank. That’s a total return length of 10 metres. 12 metres being the maximum

If you would like buy the 3/8″ John Guest tube and fittings or the RV Plumbing Kit from SolaExchange┬áhere is some important information you need to consider first.

3/8″ John Guest tube and fittings are not “watermarked” like the 12mm John Guest system. The tube and fittings in both systems are made from the same materials. If you search the specifications you will find the 3/8″ tube is rated to a higher pressures at same temperatures as the 12 mm. Both are rated for use in drinking water applications

If you are willing to take responsibility for your own installation you may consider the 3/8″ John Guest plumbing option

If you want your Solar Hot Water System system to meet the Australian Standards for domestic (home) installations then you will probably need to use copper tube, install a tempering valve and have your system professionally installed by a plumber.

SolaExchange freely provides this information with the clear intent of offering the best available options to its Australian customers. By offering 3/8″ John Guest tube and acetel plumbing fittings SolaExchange takes no responsibility in the case of failure of the 3/8″ tube or fittings or any fault due to its installation

This product is supplied for use with the Heliatos solar water heating system only !. Although his product is made from the same materials as the 12 mm John Guest tube and fittings available in stores stocking boating and RV accessories the tube is rated to higher pressures at the same temperatures it is not “water marked” as is the 12 mm product. The responsibility for installing this product rests solely with the customer and┬áthose persons installing it

Price is quoted per metre


Additional information

Weight 0.6 kg
Dimensions 300 × 0.01 × 0.01 cm