#20 Double-Pull Nylon Zipper Slider for Tents and Tarpaulins SB002N20C

What Is a #20 Double-Pull Zipper Slider?

A #20 double-pull zipper slider is a single slider body fitted with one pull tab on each side, allowing a compatible nylon zipper to be operated from either face of the finished product. This zinc alloy model is intended for large textile openings where inside-and-outside access is useful, including tents, tarpaulins, canvas covers and outdoor textile equipment. Each pull tab measures 43 × 14 mm (1.69 × 0.55 in), while the slider body measures 17 × 16.5 × 18 mm (0.67 × 0.65 × 0.71 in). Standard finishes are nickel and black nickel, and the listed minimum order is 200 pieces. “Double-pull” means two pull tabs attached to one slider; it does not mean two independently moving sliders. Since zipper size labels and chain profiles can differ between manufacturers, the slider should be tested with the intended #20 nylon zipper chain before sewing, replacement work or volume production begins.

Access from Both Sides of the Zipper

The pull tabs are positioned on opposite sides of one slider body. This arrangement makes the zipper easier to reach from inside or outside a tent entrance, tarpaulin opening or canvas enclosure. It can be particularly helpful where the textile panel separates two usable spaces or where the external pull would otherwise be difficult to reach.

This product should not be confused with a two-way zipper fitted with two separate sliders. A two-way construction allows two sliders to move independently along the chain. This product consists of one slider with two pull tabs.

Designed for Large Textile Openings

The dimensions and double-pull configuration make the slider relevant to businesses producing or repairing tents, tarps, awnings, canvas covers, protective covers and outdoor textile equipment. It may be used for new production or replacement work when the slider channel and zipper chain are compatible.

The longer pull tabs provide a larger gripping area on broad textile surfaces. Their movement should be considered when planning seams, protective flaps and folded fabric edges so that neither pull catches on the surrounding material.

Check the Zipper Chain Before Ordering

Compatibility is determined by the actual chain profile, not by the #20 label alone. Zipper tooth shape, chain width, slider channel and manufacturing tolerances may vary between suppliers. A slider carrying the same nominal size may therefore fit loosely, move with excessive resistance or fail to close a chain manufactured to different dimensions.

For replacement work, compare the original slider and zipper chain measurements. For manufacturing orders, fit the slider to a production sample and operate it repeatedly before approving the component for bulk use.

Fitting and Testing

Insert both sides of the zipper chain evenly into the slider. When the slider moves, the elements should engage consistently behind it without excessive force. Stop testing if the chain jams, separates after closing or enters the slider unevenly, as these signs may indicate an incompatible component.

The slider should also be tested after the zipper is sewn into the intended product. Fabric thickness, seam allowances and protective flaps can affect pull-tab clearance even when the slider and chain are compatible.

Finishes and Bulk Quantities

The standard listed finishes are nickel and black nickel. Available quantity options are 200, 500, 1,000 and 5,000 pieces, with a minimum order of 200 pieces. Availability and conditions for other finishes should be confirmed before ordering.

Frequently Asked Questions

What type of zipper is this slider made for?

It is offered for compatible #20 nylon zipper chains used in large textile applications. The actual chain profile must be tested before production.

What does double-pull mean?

Double-pull means that a single slider body carries one pull tab on each side, allowing the zipper to be reached from either face of the textile panel.

Is this the same as a two-way zipper?

No. This product is one slider with two pull tabs. A two-way zipper normally uses two independently moving sliders.

Where can this slider be used?

Verified applications include tents and tarpaulins. Its construction may also suit compatible canvas covers, awnings and outdoor textile equipment after sample testing.

What are the pull-tab dimensions?

Each pull tab measures 43 × 14 mm, approximately 1.69 × 0.55 inches.

What are the slider-body dimensions?

The slider body measures 17 × 16.5 × 18 mm, approximately 0.67 × 0.65 × 0.71 inches.

Which finishes are available?

The standard listed finishes are nickel and black nickel. Other finish requirements should be confirmed before ordering.

What is the minimum order quantity?

The minimum order is 200 pieces. The page also offers 500, 1,000 and 5,000-piece options.

Will it fit every zipper sold as #20?

No universal fit should be assumed. Chain profiles and manufacturing dimensions can differ, so a sample compatibility test is required.