John Guest, 12mm x 10mm Reducing Elbow. This is genuine John Guest item. One end 12mm Female. One end 10mm Female.
eBay
3-12mm Plastic Silicone Tube Straight Pipe Fitting Small size Pagoda Barb Coupling Reducing Straight Fish Tank PP Insert Hose
Aliexpress UK
All John Guest fittings are manufactured and assembled in the UK. Suitable for foodstuff, potable liquid, inert gases, air, pneumatic and vacuum applications. For sale is 3 x John Guest 12mm Equal T Tee Push Fit Pipe Water Fitting Connector Caravan.
eBay
304 SS Stainless Steel Elbow Double Ferrule Tube Pipe Fittings Connector 6-12mm Pipe OD to 1/8" 1/4" 3/8" 1/2" NPT Male Thread
Aliexpress UK
John Guest Spee d bush fit 15mm Female to 1/2" (12mm) Male Barb RBL-NC448-X1. For direct connection of 15mm O/D Semi-Rigid Speedfit pipe to 1/2" (12mm) I/D Flexible pipe. Check out our other great John Guest Bargains.
eBay
304 SS Stainless Steel Elbow Double Ferrule Tube Pipe Fittings Connector 1/8 1/4 3/8 1/2 3/4 6 8 10 12mm Pipe OD Metric Thread
Aliexpress UK
12mm Female x 12mm Female Push Fit Genuine John Guest Straight Connector. Fast and simple to install, John Guest push-fit fittings create an instant push-fit connection and leak tight seal without the need for tools, hot works or sealing agents.
eBay
6mm-12mm Hose Barb Inline Brass Water Oil Air Gas Fuel Line Shutoff Ball Valve Pipe Fittings
Aliexpress UK
For sale is 3 x John Guest 12mm x 10mm Stem Reducer Push Fit Pipe Water Fitting Connector. John Guest black push-fit acetal reducer fitting reduces a John Guest push-fit connection port. Fast and simple to install, John Guest push-fit fittings create an instant push-fit connection and leak tight seal without the need for tools, hot works or sealing agents.
eBay
1PC Male AN6 -6 AN Hose End Swivel Fitting Adapter to Banjo 12mm Diameter 6AN
Aliexpress UK
JOHN GUEST 12mm EQUAL ELBOW CONNECTOR. PUSH FIT ELBOW CONNECTOR.
eBay
YQBS Brass Barb Tail 6mm 8mm 10mm 12mm 19mm Hose 1/4 3/8 1/2 3/4 Elbow Male Female Pipe Connector Fitting Joint Coupler Adapter
Aliexpress UK
John Guest 12mm Elbow. Elbow Connector.
eBay
5PCS Pneumatic Quick Connector Air Fitting PCF For 4 6 8 10 12mm Hose Tube Pipe To 1/8" 3/8" 1/2" 1/4" BSP Female Thread Brass
Aliexpress UK
John Guest Speedfit 12mm Semi Rigid Pipe - Blue (Hot & Cold Water). A whole range of fittings are available to make your installation easier. Genuine John Guest Part.
eBay
60-100 Pcs Straight Push Pneumatic Hose Fitting Couplings Set PU 4/6/8/10/12MM Extender Plastic Trachea Connector
Aliexpress UK