Drain Bladder Kit – Fits Drain Pipes 1.5 to 3 Inch (Replaces GlückMarine Medium Drain Cleaning Bladder, Fosenlion Medium Drain Cleaning Bladder, Drain King 186)
Drain Bladder Kit – Fits Drain Pipes 1.5 to 3 Inch (Replaces GlückMarine Medium Drain Cleaning Bladder, Fosenlion Medium Drain Cleaning Bladder, Drain King 186) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Drain Bladder Kit – Fits Drain Pipes 1.5 to 3 Inch (Replaces GlückM...
Product Details
This Drain Bladder Kit – Fits 1.5 to 3 Inch Drain Pipes is a water-powered drain cleaning tool designed to unclog stubborn blockages in kitchen sinks, bathtubs, main drains, and sewer lines. Compatible with standard garden hose connections, this medium-sized bladder expands to powerfully flush obstructions.
It serves as a direct replacement for the GlückMarine Medium Drain Cleaning Bladder, Fosenlion Medium Drain Cleaning Bladder, and Drain King 186.
- Attaches easily to any standard garden hose.
- Expands to fit drain pipes from 1.5 to 3 inches (38mm to 75mm).
- Uses pulsating jets of cold water to loosen and flush blockages.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| GlückMarine | Medium Drain Cleaning Bladder |
| Fosenlion | Medium Drain Cleaning Bladder |
| Drain King | 186 |
Compatible Applications
Confirm your application and pipe size in the table below.
| Application Type | Pipe Size | Usage |
|---|---|---|
| Kitchen Sink | 1.5-3 inch | Clears stubborn blockages |
| Bathroom Sink | 1.5-3 inch | Removes hair and debris clogs |
| Bathtub | 1.5-3 inch | Unclogs drains |
| Shower | 1.5-3 inch | Removes hair and soap scum blockages |
| Main Drain | 1.5-3 inch | Clears clogs |
| Sewer Line | 1.5-3 inch | Removes blockages |
| Swimming Pool | 1.5-3 inch | Clears drain blockages |
Technical Specs
- Product Type
- Medium Drain Cleaning Bladder
- Installation
- Attaches to standard garden hose
- Connection
- Standard garden hose thread
- Housing Material
- High-quality rubber
- Housing Color
- Black
- Dimensions
- 1.35" (D) × 6.5" (H) (34.3mm × 165.1mm)
- Fitting Type
- Garden hose connection
- Thread Size
- Standard garden hose thread
- Working Pressure
- 40-80 PSI
- Operating Temperature
- Cold water only (hot water not recommended)
- Other Technical Attributes
- Fits 1.5" to 3" (38mm to 75mm) drain pipes
What’s in the Box
- 1 x Medium Drain Cleaning Bladder (fits 1.5" to 3" pipes)
Installation Notes
- Attach the rubber bladder to a garden hose.
- Insert it at least 6 inches down the drain.
- Turn on the cold water slowly to full force.
- The bladder will expand and lock itself in place.
- Pulsating jets of water will loosen and flush blockages.
Troubleshooting & FAQ
What size drain pipes does this bladder fit?
This drain bladder is designed to expand to fit pipes with an inner diameter of 1.5 inches to 3 inches (38mm to 75mm).
Can I use this with hot water?
No, this bladder is designed for cold water use only. Hot water is not recommended as it could damage the rubber housing.
How far should I insert the bladder into the drain?
For best results and to ensure it locks securely in place, insert the bladder at least 6 inches down the drain before turning on the water.
What is the required water pressure?
The recommended working pressure is between 40 and 80 PSI. Ensure your water supply meets this range for effective operation.
Is this the same as the GlückMarine or Drain King bladder?
This is a direct aftermarket replacement with comparable specifications for models like the GlückMarine Medium Drain Cleaning Bladder, Fosenlion Medium Drain Cleaning Bladder, and Drain King 186.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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