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Jubilee clip size 1A (1A (22 to 30 mm OD))

Where 1A (22 to 30 mm OD) is used, its real dimensions, and how to connect it.

1A (22 to 30 mm OD)Thread standard
Clamping range22 to 30 mm hose outer diameter
Suits20 mm bore pond and pump hose on its barb
Typeworm-drive, continuously threaded band
Sizing ruleaim for mid-range, measure on the spigot

Used on: clamping 20 mm pond hose and similar over a hosetail in the 22 to 30 mm band.

A Jubilee size 1A covers 22 to 30 mm outside diameter, which suits 20 mm bore pond hose once it is stretched over a hosetail. The continuously threaded band lets it tighten fully across the range, unlike a spot-welded clip.

Quick-connect click fittings from Hozelock, Gardena and Karcher are proprietary and do not interchange. They all sit on top of a standard thread underneath, so the reliable way to move between brands is to adapt at the threaded tap or hose-end fitting, then use each brand's own connector above it.

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Sources: Jubilee Original hose clip size chart (clamping OD ranges in mm), Jubilee Clips · Jubilee clip sizes and how to size by hose OD, The Hosemaster