Brush 90cm Stainless Steel Tube

This 90cm stainless steel tube brush is a flexible, double-ended pipe cleaning brush. In school science labs it's a handy cleaning and maintenance tool: experiments often leave thick liquids, chemical residue or biological growth behind, and narrow glassware has to be properly clean for accurate results.

Materials

• Bristles: Durable soft nylon that scrubs without scratching.
• Core: Wound stainless steel wire that bends around tight curves.

Design

• Double-ended: Two different-sized brush heads for different tube diameters.
• Long reach: The flexible core lets the brush travel deep into curved and coiled tubing.

School Laboratory Uses

• Condenser cleaning: Cleans the inner coils and narrow glass jackets of distillation condensers.
• Burettes and pipettes: Reaches down long, narrow burettes to remove chemical film without scratching the markings.
• Glass tubing and connectors: Scrubs carbon deposits or chemical residue out of narrow glass tubes used in gas collection experiments.
• Wash bottle spouts: Clears algae or mineral build-up from the narrow, curved delivery tubes of plastic wash bottles.
• Rubber and silicone tubing: Cleans the inside of Bunsen burner gas hoses or water lines connected to vacuum aspirators.

Why Schools Use This Brush

• Prevents cross-contamination: Removing chemical residue properly means the next experiment isn't spoiled by leftovers.
• Fewer breakages: The flexible coiled wire bends smoothly inside curved glass, so students and lab assistants are less likely to snap expensive glassware.
• Two sizes in one: The double-ended design gives lab assistants two brush sizes on one tool, which helps when cleaning a trolley of mixed equipment.

Specifications

• Total length: 90cm
• Large brush head: About 30mm (1.2 inches) in diameter and roughly 50mm to 65mm long. For wide drains, inlet tubes and burettes.
• Small brush head: About 15mm to 18mm (0.6 to 0.7 inches) in diameter and roughly 45mm to 65mm long. For narrow glass tubes, thin pipettes and nozzles.
• Core wire: High-tensile wound stainless steel spring wire. It's rust-proof, resists mild lab detergents and is flexible enough to get around U-bends and tight angles without deforming.
• Bristles: Food-grade, high-density soft nylon, with rounded tips that won't scratch glass, acrylic or soft PVC tubing.
• Product of China