Classic Stainless Steel Lily Pipes (12/16 mm or 16/22 mm)

Tired of worrying about fragile glass lily pipes every time you clean your hoses or service your filter? Then you need the Castle Dawn Aquatics Classic Stainless Steel Lily Pipes! These sleek stainless steel inflow and outflow pipes are made for external canister filters on freshwater and planted aquariums, and they will not crack or shatter like glass.

Plus, the precision-cut inflow slots give you strong suction, while the curved outflow pipe sends water across your tank to help with circulation. Pick the right size for your hose, and you have a clean, simple, easy-to-maintain filter setup that makes your aquascape look as good as it is to look after.

What’s Included:

• 1 × Stainless Steel Classic Inflow Pipe
• 1 × Stainless Steel Classic Outflow Pipe
• Clear mounting clips

Size:
Choose by your filter hose inner diameter:

• 12 mm set: for 12/16 mm hose (1/2 inch ID). Pipe outer diameter: 13 mm (0.51 inches).
• 16 mm set: for 16/22 mm hose (5/8 inch ID). Pipe outer diameter: 17 mm (0.67 inches).

12 mm set dimensions:

• Outflow pipe: 4.5 cm (1.77 inches) wide, short leg 10 cm (3.94 inches), long leg 20 cm (7.87 inches)
• Inflow pipe: 4.5 cm (1.77 inches) wide, short leg 20 cm (7.87 inches), overall height 30 cm (11.81 inches)

16 mm set dimensions:

• Outflow pipe: 6.5 cm (2.56 inches) wide, short leg 15 cm (5.91 inches), long leg 25 cm (9.84 inches)
• Inflow pipe: 6.5 cm (2.56 inches) wide, short leg 25 cm (9.84 inches), overall height 30 cm (11.81 inches)

Best For:

• Freshwater and planted aquariums
• External canister filters
• Aquascapers who want a sleek metal look instead of glass
• Anyone who wants a classic inflow and outflow setup without surface skimming

Key Features:

• Hose fit: 12/16 mm (1/2 inch ID) or 16/22 mm (5/8 inch ID) tubing
• Classic lily pipe design: a simple inflow and outflow pair without a surface skimmer.
• Stainless steel construction: durable, rust-resistant and built for continuous exposure to water and routine cleaning.
• Shatterproof: takes the stress out of hose scrubbing and filter maintenance compared with fragile glass lily pipes.
• Precision-cut inflow slots: provide strong suction and help keep small fish, dwarf shrimp and snails out of your filter.
• Curved outflow pipe: directs water across the tank to help with circulation, CO2 distribution, nutrient delivery and surface aeration.
• Clear mounting clips included.

Compatibility & Limitations:

• Designed for external canister filters on freshwater and planted aquariums.
• Always check your filter hose inner diameter before choosing the 12 mm or 16 mm set.
• These are classic lily pipes without a surface skimmer. Want surface skimming? Choose our Stainless Steel Lily Pipes with Skimmer.

How to Use:

• Mount the pipes in your tank with the clear clips.
• Connect the pipes to your canister filter hoses.
• Position the outflow so it directs water across the tank.

Care:

• Disconnect the pipes from your filter hose during routine maintenance and run a flexible double-ended spring brush through the inside.

Quick Answers:

• Which size do I need? The 12 mm set fits 12/16 mm (1/2 inch ID) hose, and the 16 mm set fits 16/22 mm (5/8 inch ID) hose.
• Are these suitable for planted tanks? Yes, they are freshwater and safe for planted tanks.
• What is a classic lily pipe? It is a standard inflow and outflow pipe pair without a surface skimmer. Choose our Stainless Steel Lily Pipes with Skimmer if you want one.
• How do I clean them? Disconnect the pipes during maintenance and clean the inside with a flexible double-ended spring brush.
• What is included? One stainless steel classic inflow pipe, one stainless steel classic outflow pipe and clear mounting clips.