1" Single Hose Clamp (E19-33): Secure Hoses Properly
By Maintenance Depot Plumbing Team · Last reviewed
Quick answer
The E19-33 single hose clamp fits hoses from 16mm to 25mm (about 1"), and is ideal for washing machine, garden, small pump and equipment hoses.
A hose is only as secure as its clamp. The 1" single hose clamp (E19-33) fits a 16mm-25mm range, making it ideal for small hoses around the home and workshop.
Specs at a glance
| Spec | Detail |
|---|---|
| Product | Single hose clamp |
| Model | E19-33 |
| Nominal size | 1" |
| Clamping range | 16-25mm |
Common uses
- Washing machine drain hoses
- Garden hose repairs and fittings
- Small pump connections
- Aquarium, irrigation and equipment hoses
How to size a hose clamp
Measure the outside diameter of the hose once it's fitted over the barb or pipe. Choose a clamp whose range includes that measurement, ideally near the middle of the range for the best grip.
How to fit
- Slide the clamp over the hose before pushing the hose onto the fitting.
- Push the hose fully onto the barb or pipe.
- Position the clamp about 1/4" from the hose end, over the barb.
- Tighten with a screwdriver or nut driver until snug. Don't crush the hose.
Tips
- Re-check tightness after the first few uses, as rubber can settle.
- Use two clamps on high-pressure or critical connections.
Need a different size?
Maintenance Depot stocks single hose clamps in 1", 1-1/2", 2" and 3" sizes.
Frequently asked questions
How do I choose a hose clamp size?
Measure the hose outside diameter on the fitting and pick a clamp with that size near the middle of its range.
Where should the clamp sit?
About 1/4" from the hose end, over the barb.
Can I over-tighten a clamp?
Yes. Stop when snug, as over-tightening can cut the hose.