Premium PVC Circular Hole Aquarium Drain Fitting (20-50mm) | High Flow Flush Mount Bulkhead | Turtle Tank & Seafood Pool

High-Flow Circular Hole PVC Drain Fitting

Experience unrestricted water flow and ultimate waste removal with our Circular Hole Drain Fittings from Atradesen.com. Manufactured from drinking-water-grade PVC, this bulkhead is specifically designed for turtle tanks, koi ponds, high-density seafood pools, and custom aquariums that require massive, clog-free drainage for large detritus.

🌊 Maximum Flow & Non-Clogging Design

• Unrestricted Circular Hole: The open, grid-less design easily passes large particles and heavy turtle/fish waste without clogging, making it incredibly easy to clean and maintain.
• Flush Bottom Drainage: Engineered to sit perfectly flat against the tank floor, ensuring complete water and waste removal with zero dead zones.
• Versatile Switch Setup: Connect to standard PVC hard pipes via push-fit or PVC cement. Pair it with a PVC ball valve below, or simply plug the top hole with a rubber stopper for a highly effective, low-cost manual drain switch.

⚠️ Sizing & Drilling Guide (Crucial!)

Ensure a 100% leak-proof fit by matching your tank specs with our Atradesen.com guide before ordering:

• 20mm I.D. Model: Drill Hole: 20-23mm | Clamps Glass: 0-15mm | Fits 20mm O.D. Pipe
• 25mm I.D. Model: Drill Hole: 25-28mm | Clamps Glass: 0-18mm | Fits 25mm O.D. Pipe
• 32mm I.D. Model: Drill Hole: 32-35mm | Clamps Glass: 0-24mm | Fits 32mm O.D. Pipe
• 40mm I.D. Model: Drill Hole: 40-43mm | Clamps Glass: 0-25mm | Fits 40mm O.D. Pipe
• 50mm I.D. Model: Drill Hole: 50-55mm | Clamps Glass: 0-26mm | Fits 50mm O.D. Pipe