8mm (5/16") duotight Fittings

Find high-quality 8mm 5/16" threaded duotight fittings at HydroLand. Simplify your hydroponics and gardening setups with duotights.

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15 products

Please Note: This is not a replacement thermowell bulkhead for the 60cm Thermowell. This fitting is designed to stop the hose from being pushed in all the way.Please Note: This is not a replacement thermowell bulkhead for the 60cm Thermowell. This fitting is designed to stop the hose from being pushed in all the way.
Duotight
duotight – 8mm (5/16”) Female x 1/4 Inch BSP Male Thread (With Seated O-Ring)
Sale price$3.95
The double o-ring system also means that we can bend the hose with much tighter radius without causing leaking issues. The double o-ring system also means that we can bend the hose with much tighter radius without causing leaking issues. 
Duotight
duotight – 8mm (5/16”) Female x 8mm (5/16”) Female Push In Joiner
Sale price$3.95
This reducer is suitable for our EVABarrier Beer & Gas hosing 8mm (5/16") OD Hosing that can be fitted to any female duotight push fit in 9.5mm (3/8").This reducer is suitable for our EVABarrier Beer & Gas hosing 8mm (5/16") OD Hosing that can be fitted to any female duotight push fit in 9.5mm (3/8").
HydroLand
duotight - 9.35mm (3/8) Male x 8mm (5/16) Female Reducer
Sale price$1.50
This check valve is suitable for clean liquids such as water or for gas.This check valve is suitable for clean liquids such as water or for gas.
Duotight
duotight - 8mm (5/16”) Female x 8mm (5/16”) Female One Way Check Valve (Gas)
Sale price$3.95
duotight – 8mm (5/16”) Female Ball Valve/Shut Off Valveduotight – 8mm (5/16”) Female Ball Valve/Shut Off Valve
Duotight
duotight – 8mm (5/16”) Female Ball Valve/Shut Off Valve
Sale price$2.95
duotight – 8mm (5/16”) Female x 8mm (5/16”) Female Push In Elbow - KegLandduotight – 8mm (5/16”) Female x 8mm (5/16”) Female Push In Elbow - KegLand
Duotight
duotight – 8mm (5/16”) Female x 8mm (5/16”) Female Push In Elbow
Sale price$3.95
duotight - 8mm (5/16”) OD Retaining Circlip (10 Pack)
Duotight
duotight - 8mm (5/16”) OD Retaining Circlip (10 Pack)
Sale price$1.00
This reducer is suitable for our EVABarrier Beer & Gas hosing 6.35mm (1/4") OD Hosing that can be fitted to any female duotight push fit in 8mm (3/8").This reducer is suitable for our EVABarrier Beer & Gas hosing 6.35mm (1/4") OD Hosing that can be fitted to any female duotight push fit in 8mm (3/8").
HydroLand
duotight - 8mm (5/16'') Male x 6.35mm (1/4'') Female Reducer
Sale price$1.50
Split any 8mm liquid or gas line into 4 separate lines with this one fitting.Split any 8mm liquid or gas line into 4 separate lines with this one fitting.
HydroLand
duotight - 8mm (5/16) Female - 5 way Multi-Tee
Sale price$3.25
Looking for high quaility push in fittings that will seal tight? duotight are the push in fitting with superior sealing capacity due to the double o-ring sealing design.Looking for high quaility push in fittings that will seal tight? duotight are the push in fitting with superior sealing capacity due to the double o-ring sealing design.
Duotight
duotight - 8mm (5/16”) Female x 9.5mm (3/8”) Female Reducer
Sale price$3.95
One side is a standard 8mm (5/16) duotight push in fitting, where the other side is a compression adapted duotight (Screw Lock)One side is a standard 8mm (5/16) duotight push in fitting, where the other side is a compression adapted duotight (Screw Lock)
Duotight
duotight - 8mm (5/16) Screwlock x 8mm (5/16) Elbow
Sale price$3.45
The perfect fitting for bending around tight corners, the 8mm duotight elbow uses two o-rings for superior performance and reliability.The perfect fitting for bending around tight corners, the 8mm duotight elbow uses two o-rings for superior performance and reliability.
Duotight
duotight - 8mm (5/16”) Female x 8mm (5/16”) Male Elbow
Sale price$3.95
This rigid 50mm long joiner is made from strong polypropylene. It's useful to make rigid joins with push in fittings that are dead straight.Rigid Plastic Joiner 6mm ID x 8mm OD (5/16) x 50mm Long - KegLand
Duotight
Rigid Plastic Joiner 6mm ID x 8mm OD (5/16) x 50mm Long
Sale price$1.95
duotight - 8mm (5/16') Plug - KegLandduotight - 8mm (5/16') Plug - KegLand
Duotight
duotight - 8mm (5/16') Plug
Sale price$0.99
The secret to our superior sealing performance is not just the fact that we use high quality EPDM and a Silicone O-Ring.The secret to our superior sealing performance is not just the fact that we use high quality EPDM and a Silicone O-Ring.
Duotight
duotight - 6.35mm (1/4') Female x 8mm (5/16') Female Reducer
Sale price$3.95

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