Boiler Tube Cleaning & Sounding Sponges — Foam Tube-Cleaning Projectiles (Safe-T-Sponge®)

Clear the tube — and prove it's clear

These compressible foam sponges are sized to slide through boiler, condenser, and heat-exchanger tubes. Loaded at one end and driven through with compressed air, they swab out loose scale and debris and let you "sound" each tube — if the sponge exits the far end, you've confirmed the tube is open and unobstructed. Fast, low-cost, and made from the same clean low-halogen foam as the rest of the line.

What they're for

• Cleaning — blow them through to wipe out loose debris, soot, and scale ahead of inspection or service.
• Sounding — confirm a tube is clear and fully open by passing a sponge end-to-end.
• Sized to the tube ID across 1"–4.25" for a snug, effective pass.
• Low-halogen, low-metals foam with lot-number traceability; nuclear & fossil compatible.
• Made in the U.S.A.

Where they're used

Boiler tubes, condenser and heat-exchanger tubes, and similar tube bundles during outages, cleaning, and inspection — wherever you need to clear and verify tubes quickly without harsh tools.

Specifications

• Sizes: 1.00", 1.25", 1.5", 2.25", 2.75", 3.25", 4.25" (25 mm–107 mm)
• Material: low-halogen, low-metals foam
• Use: driven through tubes by compressed air
• Availability: in stock
• Origin: Made in U.S.A.

Use & care

• Select a sponge slightly larger than the tube ID so it seals and sweeps as it travels.
• Use regulated compressed air; keep hands and personnel clear of the tube exit — sponges exit with force.
• Account for every sponge in and out; don't leave one lodged in a tube.
• Don't reuse a sponge that's torn or heavily fouled.

Buying for an outage? Order in quantity — contact us for case/bulk pricing and lead times on large counts.