Waterway Inside Coupling, 2" PVC Schedule 40 | 419-4120
Waterway
SKU: 419-4120
Waterway 419-4120 2" Inside Coupler (Sch 40 PVC Insider Coupling, White)
The Waterway 419-4120 is a 2" inside coupler (also called an insider coupling) designed to solvent-weld inside the bore of 2" Schedule 40 PVC pipe. It’s commonly used for tight plumbing repairs where you need to join two pipe ends without adding extra length like a standard slip coupling.
Key Features
- Inside-pipe repair fitting: glues inside 2" Sch 40 PVC pipe (inside-slip on both ends)
- Space-saving design: ideal when you can’t move equipment or don’t have room for a standard coupling
- Helps maintain existing plumbing footprint during repairs and modifications
- Durable white PVC construction for pool and spa plumbing applications
Common Uses
- Repairing a cracked or cut section of 2" PVC pipe when pipe length is limited
- Joining two 2" pipe ends without changing alignment of valves, unions, or equipment
- Quick fixes on pool/spa suction and return plumbing (where inside-coupler style fittings are appropriate)
Specifications
- Part Number: 419-4120
- Type: Inside Coupler / Insider Coupling
- Pipe Size: 2" Schedule 40 PVC
- Connection Style: Inside slip x inside slip (solvent-weld)
- Color: White
Installation Notes
- Dry-fit first and confirm the pipe ends are round and clean; remove burrs and debris.
- Use PVC primer and cement rated for pressure plumbing and follow cure times based on temperature/humidity.
- Because this fitting glues inside the pipe, make sure the inside pipe surface is clean and free of scale/film for best bonding.
Related Products
- 2" PVC Schedule 40 Couplings
- 2" PVC Schedule 40 Pipe
- PVC Primer & Cement
- 2" PVC Unions
- 2" PVC Ball Valves
Maintenance Tips
- After any plumbing repair, check for seepage once the system is running and re-check after the first full heat/cool cycle.
- Support nearby plumbing to reduce vibration stress on glued joints.
- When winterizing, drain lines appropriately to help prevent freeze damage that can crack fittings and pipe.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
Related Products
