Silicone Hole Caps And O Ring Set 2.5mm 3mm 3.5mm 4mm Assorted Plugs Kit For Pipes And Equipment DIY Friendly Extreme Temp Resistance Minus 40 To Plus 250 Celsius Flexible Seals Anti Aging Alkali Resistant 10 20 50 100 Pcs

Silicone Hole Caps & O-Ring Set for 2.5-4 mm Plugs
✔️ Assorted 2.5-4 mm silicone plugs with O-rings, 10/20/50/100 pcs

These silicone hole caps and O-ring seals are a DIY-friendly kit designed to seal small openings and fittings in pipes and equipment, especially in low-pressure systems. They excel in quick sealing for pipelines, machine housings, automotive lines, and coolant or air-conditioning runs.

✅ Temperature range: -40 to +250 °C
✅ Material: Silicone rubber; anti-aging, alkali resistant
✅ Sizes covered: 2.5, 3, 3.5, 4 mm plugs; assorted packs 10/20/50/100 pcs
✅ Color: White; suitable for pipelines, equipment, automotive systems

💡 What is a silicone hole plug and O-ring set used for in piping and equipment?

This handy seal kit helps close off openings in pipes and equipment under low to moderate pressure. - Seals small openings in pipelines, machinery housings, and automotive lines - Includes 2.5-4 mm plugs with matching O-rings - -40 to 250 °C range and alkali resistant - Suitable for DIY projects and quick field repairs ✝️