Premium Pure Black Acrylic Overflow Strainer - Silent Vent Cap & Fish Guard (20mm to 50mm ID)

2026-04-29T02:22:37-07:00

Price: 2.51 - 39.84 (10 variants)

Premium Pure Black Acrylic Overflow Strainers (Vent Cap)

Unprotected overflow standpipes in high-end aquariums are notorious for creating loud, irritating gurgling noises and posing a fatal hazard to expensive fish and roaming invertebrates. Our Premium Pure Black Acrylic Overflow Strainers provide the ultimate safeguard for your aquatic ecosystem. Designed to slip directly over your rigid plumbing, this dome-shaped vent cap effectively breaks up the water surface to drastically reduce overflow noise. Furthermore, the precisely slotted design prevents livestock from entering the plumbing while maximizing air-to-water contact to naturally boost dissolved oxygen levels.

🌟 Key Engineering Features:

Livestock & Debris Guard: The engineered slotted dome acts as a physical barrier, ensuring fish, snails, and large plant debris are safely kept out of your critical filtration plumbing, preventing catastrophic clogs.

Acoustic Noise Reduction: By smoothing the water flow as it enters the overflow pipe, it eliminates the annoying "flushing" or "gurgling" sounds typical of open standpipes, keeping your living space peacefully quiet.

Oxygenation Boost: The hydrophobic striped design increases the surface area of the water passing through the cap, promoting superior gas exchange and higher dissolved oxygen for a healthier reef environment.

Premium Acrylic Build: Crafted from high-gloss pure black acrylic. It perfectly blocks light to prevent algae growth inside the pipe and delivers a sleek, professional aesthetic to your display tank.

📐 Installation Guide:

Sizing is based on the Inner Diameter (ID) of the cap, which corresponds to the Outer Diameter (OD) of your existing pipe. Simply slide the cap over the pipe for a secure friction fit (dry-fit) to allow for easy removal and cleaning, or use an acrylic-safe adhesive for a permanent bond. Protect your livestock and silence your overflow today!