Weiler 21138 Nylox Nylon Single Spiral Tube Brush

Product Description

The WEILER 21138 is a Nylox nylon single spiral tube brush designed for cleaning the interior of tubes, pipes, and small bores. The brush measures 5.5 inches in overall length with a 1 inch brush diameter. Nylon bristles with a 0.022 inch bristle diameter are wound in a single spiral pattern, providing consistent scrubbing contact along the full length of the working area. HVAC technicians, plumbers, and maintenance professionals use this style of brush for deburring, cleaning, and surface preparation inside cylindrical openings.

Single spiral tube brushes like the WEILER 21138 are suited to light-duty interior cleaning of tubing, conduit, fittings, and similar round-bore components. The nylon bristle construction makes it appropriate for use on softer base materials where metal bristles would cause surface damage, or in applications where a non-metallic abrasive is required. It is a hand-tool brush typically used in bench work, pre-assembly cleaning, and field maintenance tasks across plumbing, HVAC, electrical, and light industrial applications.

Key Features

• Nylox nylon bristles resist moisture and mild chemicals, suitable for wet or dry use
• Single spiral construction delivers uniform bristle contact inside tube bores
• 0.022 inch bristle diameter provides light-duty scrubbing without aggressive material removal
• 1 inch brush diameter fits standard small-bore tubing and fittings
• 5.5 inch overall length allows reach into deeper tube sections

Compatibility

Designed as a general-purpose interior tube cleaning brush suited for use in small-bore tubes, pipes, and fittings with a 1 inch inside diameter across plumbing, HVAC, and electrical maintenance applications.

Installation Notes

This brush is a hand-operated cleaning tool and does not require power tools or special codes for use. Select the correct brush diameter to match the bore being cleaned — an oversized brush will not seat properly and an undersized brush will not make sufficient contact. Do not force the brush through bends or obstructions that exceed the bristle flex tolerance, as this can deform the spiral wrap. Replace the brush when bristles show visible wear or flaring that reduces cleaning effectiveness.

Technical Specifications

• Overall Length: 5.5 inches
• Brush Diameter: 1 inch
• Bristle Material: Nylon (Nylox)
• Bristle Diameter: 0.022 inches
• Bristle Pattern: Single Spiral

Standard Information

• Brand: WEILER
• Manufacturer Part Number: 21138