Product Description

Pentair® IntelliFlo3® VSF Diffuser O-Ring – 356190Z

✅ Genuine Pentair® OEM Replacement Part
⚠️ For IntelliFlo3® VSF Pumps Only
❌ Not Compatible with IntelliFlo2®, IntelliFloXF®, or WhisperFlo® Pumps

Key Features

✅ Creates a watertight seal between the diffuser and seal plate
✅ Molded from chemical-resistant rubber for long life in pool/spa environments
✅ Helps maintain prime and pump efficiency by preventing air or water leaks
✅ Exact fit for IntelliFlo3® VSF series – no trimming or modification needed
✅ Easy replacement during standard pump service or rebuild

System Compatibility

✅ Pentair® IntelliFlo3® VSF Variable Speed Pumps (3.0 HP and related models)
⚠️ Always verify your pump’s model tag and parts diagram
❌ Not interchangeable with older IntelliFlo® or other Pentair® pump families

Recommended Accessories

⚠️ Pentair® 356173Z Seal Plate O-Ring – replace together to ensure full seal integrity
⚠️ Pentair® Shaft Seal Kit – change whenever the pump is opened for service
❌ Reusing worn O-rings can cause air leaks, cavitation, and shortened pump life

What’s Included

✅ 1 x Pentair® IntelliFlo3® Diffuser O-Ring (356190Z)

Tech Tips

• ✅ Always Replace When Opening Pump: Even if it looks intact, a worn diffuser O-ring can cause performance loss.

• ⚠️ Use Proper Lubrication: Apply silicone-based pool lube only; avoid petroleum grease.

• ✅ Inspect Mating Surfaces: Clean and check diffuser and seal plate for cracks or warping before reassembly.

• ❌ Do Not Over-Compress: Over-tightening bolts can distort the O-ring and lead to leaks.

Click here for the Intelliflo Brochure
Click here for the Intelliflo Owners's Manual
Click here for more Pentair Pumps

Review Summary