T-H Marine Pontoon Gate Latch GL-1-DP, Black — Reversible Nylon Latch, Low-Profile Fit for 1", 1 1/8" & 1 1/4" Tubing

The T-H Marine GL-1-DP Pontoon Gate Latch in black is a reversible, nylon-molded latch that secures pontoon gates and eliminates rattling while fitting common square tube sizes.

Designed specifically for pontoon and tube-framed gates, this compact latch works on either right- or left-hinged doors and prevents inward swinging. Its nylon-molded body reduces noise and wear, while the straightforward design installs quickly on 1", 1 1/8" or 1 1/4" square tubing. Built for marine environments, the latch offers a low-profile, durable solution for maintaining gate alignment and quiet operation.

How does this latch stop pontoon gates from swinging inward?

The GL-1-DP uses a secure catch and molded housing to hold the gate closed and resist inward movement caused by wake, wind, or foot traffic. The shape of the latch seat guides the gate into position for consistent engagement.

• Nylon-molded components cradle the gate for firm holding force.
• Catch geometry prevents inward drift when engaged.
• Low-profile design reduces snagging while holding alignment.

Can I install this on either right- or left-hinged gates?

Yes — the GL-1-DP is reversible and designed to function on both right- and left-hand hinged gates without modification. That flexibility simplifies stocking and speeds up installation regardless of gate orientation.

• Reversible mechanism works on either hinge side.
• No additional parts required to change handing.
• Saves time when retrofitting or replacing existing latches.

What tube sizes and materials does it fit?

The latch fits standard square tubing used on most pontoon railings and decks, accommodating 1", 1 1/8" and 1 1/4" square tubes. Its mounting design accepts common tube wall thicknesses and holds firmly when tightened.

• Compatible with 1", 1 1/8", and 1 1/4" square tubing.
• Molded body prevents direct metal-to-metal contact on tube surfaces.
• Works with typical aluminum pontoon framework and similar tube materials.

How difficult is installation and what tools are needed?

Installation is straightforward and intended for DIY fitting: position, clamp, and fasten to the square tube using basic hand tools. Clear access to the mounting area and a few minutes per latch is usually all that's required.

• Requires common hand tools (screwdriver, wrench or socket set).
• No specialized drilling or cutting typically needed for standard tube mounts.
• Instructions are simple—align, secure, and test for proper engagement.

Who is this for: The T-H Marine GL-1-DP Pontoon Gate Latch is ideal for boat owners, marina operators, and marine technicians who need a quiet, reliable latch for tube-framed gates. It suits anyone replacing worn hardware, upgrading noisy or loose latches, or installing new gates on pontoons, docks, and similar tube-based rail systems. Its reversible design and compatibility with common square tube sizes make it a practical choice for general-purpose marine gate security and noise reduction.