Jandy NeverLube Diverter Valves: Sizing and Selection Guide

When it comes to pool plumbing, the Jandy NeverLube Valve is widely regarded as the industry standard. These valves changed the game by eliminating the need for lubrication while delivering long-term reliability. But when you're staring at multiple model numbers, it’s easy to wonder — is a 4715 the same as a 4717? And what exactly is a “Space Saver” valve?
Choosing the wrong valve size can restrict water flow and reduce the efficiency of your pool pump. Below, we break down the differences between the most common Jandy NeverLube models so you can confidently select the right valve for your system.

1. Residential Standard: Jandy NeverLube 4715 (1.5" – 2")
The Jandy 4715 is the most commonly installed valve on residential pools. It’s a 3-port diverter valve, allowing you to direct water between pool/spa lines, suction sources, or return circuits.
Key Specifications:
- Dual-Size Ports: Accepts 1.5" pipe internally (slip) or 2" pipe externally (spigot).
- Designed for Residential Flow Rates: Ideal for standard filtration systems.
- Positive Seal Technology: Minimizes internal leakage between ports — especially important for raised spas.

2. High-Flow Choice: Jandy NeverLube 4717 (2" – 2.5")
Modern equipment pads increasingly use larger plumbing to support high-efficiency and variable-speed pumps. The Jandy 4717 is designed specifically for these higher-flow systems.
Why Choose the 4717?
- Larger Plumbing Compatibility: Accepts 2" pipe internally or 2.5" pipe externally.
- Reduced Flow Restriction: Better suited for high-output pumps and water features.
- CPVC Construction: Handles higher temperatures from heaters more effectively.
- Ideal for Larger Pools & Complex Pads: Great for multiple lines, features, or higher GPM demands.

3. Compact Solution: Jandy Space Saver 3407
When space is limited, the Jandy 3407 Space Saver Valve provides NeverLube reliability in a smaller footprint.
Unique Features:
- 2-Port Design: Built for simple on/off control or line isolation.
- Compact Body: Ideal for tight equipment pads.
-
Dual-Size Ports: Compatible with 1.5" internal or 2" external plumbing.
Quick Comparison: Which Valve Fits Your Pipe?
| Model | Type | Internal Pipe | External Pipe |
|---|---|---|---|
| 4715 | 3-Port Diverter | 1.5" | 2" |
| 4717 | 3-Port Diverter | 2" | 2.5" |
| 3407 | 2-Port Space Saver | 1.5" | 2" |
Which Valve Should You Choose?
Go with the Jandy 4715 if…
You have 1.5" plumbing and need full 3-way flow control for pool/spa or suction/return switching.
Go with the Jandy 4717 if…
Your system uses 2" or larger plumbing. Matching valve size helps maintain optimal flow and pump efficiency.
Go with the Jandy 3407 if…
You only need to isolate or control a single line and space is limited.
Pro Tip: All Jandy NeverLube valves are compatible with Jandy Valve Actuators, making future automation upgrades simple.
Not sure which valve fits your plumbing? Contact us today and we’ll help you size it correctly the first time.
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