Overflows & Returns
Shop our H2Overflow® aquarium overflows, Siphon Stopper® return nozzles, Stealthbox® overflow boxes, and more. This is one of the most versatile and fail proof aquarium sump overflow and return system on the market. It is used in thousands of tanks to circulate water to and from the sump every day.
Showing 1–16 of 19 results
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1/2″ Siphon Stopper For Non-Drilled Tanks
$34.95- Pipe/Hose Diameter: 1/2" Diameter
- Color: Black
- Material: Plastic – PVC
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1/2″ Siphon Stopper® Complete Fitting w/ Bulkhead and Elbow
$39.95- Pipe/Hose Diameter: 1/2" Diameter
- Color: Black
- Material: Plastic – PVC
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1/2″ Siphon Stopper® Return Fitting
$29.95- Pipe/Hose Diameter: 1/2" Diameter
- Color: Black
- Material: Plastic – PVC
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3/4″ Siphon Stopper For Non-Drilled Tanks
$34.95- Pipe/Hose Diameter: 3/4" Diameter
- Color: Black
- Material: Plastic – PVC
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3/4″ Siphon Stopper® Complete Fitting w/ Bulkhead & Elbow
$49.95- Pipe/Hose Diameter: 3/4" Diameter
- Color: Black
- Material: Plastic – PVC
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3/4″ Siphon Stopper® Return Fitting
$39.95- Pipe/Hose Diameter: 3/4" Diameter
- Color: Black
- Material: Plastic – PVC
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StealthBox Only – No H2Overflow Screens or Gaskets
$99.95- Dimensions: 10.2" H × 17.92" L × 3.9" D
- Material: Plastic – PVC
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StealthBox with 1200GPH Single H2Overflow Screen
$159.95- Dimensions: 10.2" H × 17.92" L × 3.9" D
- Max Flow Rate: 1200 GPH
- Drilled Holes: 1
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StealthBox with 2400GPH Double H2Overflow Screens
$239.95- Dimensions: 17.92" H × 10.2" L × 3.9" D
- Max Flow Rate: 2400 GPH
- Drilled Holes: 2
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StealthBox with 3600GPH Triple H2Overflow Screens
$319.95- Dimensions: 17.92" H × 10.2" L × 3.9" D
- Max Flow Rate: 3600 GPH
- Drilled Holes: 3
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Ultimate 2 Hole 2400GPH Plumbing Kit
Original price was: $46.85.$39.95Current price is: $39.95.Sale!- Max Flow Rate: 2400 GPH
- Material: Plastic – PVC
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Ultimate 4 Hole 3600GPH Plumbing Kit
Original price was: $78.70.$69.95Current price is: $69.95.Sale!- Max Flow Rate: 3600 GPH
- Material: Plastic – PVC
Showing 1–16 of 19 results
