Compatible Pentair 35505-1440 Trap Cover O-Ring Replacement for Pentair Pool and Spa Inground Pumps
Compatible Pentair 35505-1440 Trap Cover O-Ring Replacement
Precision-molded seal for WhisperFlo XF, Max-E-Pro, and Dyna-Pro pump trap covers
Why O-Ring Replacement Matters
A cracked or swollen trap cover O-ring is the most common cause of air leaks in pool pumps. Even small cracks allow air into the system, causing prime loss, reduced flow, and inefficient chemical mixing. Replacing the O-ring when you notice leaking or loss of prime prevents damage to the pump seal and motor.
Product Details
| Part Number | 35505-1440 |
| Material | Chemical-resistant elastomer |
| Dimensions | 19.05 x 17.78 cm (nominal) |
| Weight | 45g |
| Origin | United States |
Fits These Pump Models
This trap cover O-ring works with Pentair WhisperFlo XF pool and spa inground pumps. Also compatible with Sta-Rite IntelliPro variable speed pumps, Sta-Rite Max-E-Pro series pumps, Sta-Rite Max-E-Pro XF series pumps, and Sta-Rite Dyna-Pro and Dyna-Pro E pumps in single and two-speed configurations from 1/2 HP to 2-1/2 HP.
When to Replace
Visual Check
Look for cracks, compression set, or swelling during routine basket cleanings
Preventive Service
Replace O-ring at start of season or after 12 months of continuous use
Active Leak
If you see water dripping from trap cover or pump loses prime repeatedly
Simple Installation
Drop-in replacement takes less than five minutes with basic hand tools
Restores Seal Integrity
Eliminates air leaks that reduce pump efficiency and chemical effectiveness
Protects Equipment
Proper sealing prevents dry running and extends pump seal life
Compatible Pentair 35505-1440 Trap Cover O-Ring Replacement
Precision-molded seal for WhisperFlo XF, Max-E-Pro, and Dyna-Pro pump trap covers
Why O-Ring Replacement Matters
A cracked or swollen trap cover O-ring is the most common cause of air leaks in pool pumps. Even small cracks allow air into the system, causing prime loss, reduced flow, and inefficient chemical mixing. Replacing the O-ring when you notice leaking or loss of prime prevents damage to the pump seal and motor.
Product Details
| Part Number | 35505-1440 |
| Material | Chemical-resistant elastomer |
| Dimensions | 19.05 x 17.78 cm (nominal) |
| Weight | 45g |
| Origin | United States |
Fits These Pump Models
This trap cover O-ring works with Pentair WhisperFlo XF pool and spa inground pumps. Also compatible with Sta-Rite IntelliPro variable speed pumps, Sta-Rite Max-E-Pro series pumps, Sta-Rite Max-E-Pro XF series pumps, and Sta-Rite Dyna-Pro and Dyna-Pro E pumps in single and two-speed configurations from 1/2 HP to 2-1/2 HP.
When to Replace
Visual Check
Look for cracks, compression set, or swelling during routine basket cleanings
Preventive Service
Replace O-ring at start of season or after 12 months of continuous use
Active Leak
If you see water dripping from trap cover or pump loses prime repeatedly
Simple Installation
Drop-in replacement takes less than five minutes with basic hand tools
Restores Seal Integrity
Eliminates air leaks that reduce pump efficiency and chemical effectiveness
Protects Equipment
Proper sealing prevents dry running and extends pump seal life
Original: $8.99
-65%$8.99
$3.15Description
Compatible Pentair 35505-1440 Trap Cover O-Ring Replacement
Precision-molded seal for WhisperFlo XF, Max-E-Pro, and Dyna-Pro pump trap covers
Why O-Ring Replacement Matters
A cracked or swollen trap cover O-ring is the most common cause of air leaks in pool pumps. Even small cracks allow air into the system, causing prime loss, reduced flow, and inefficient chemical mixing. Replacing the O-ring when you notice leaking or loss of prime prevents damage to the pump seal and motor.
Product Details
| Part Number | 35505-1440 |
| Material | Chemical-resistant elastomer |
| Dimensions | 19.05 x 17.78 cm (nominal) |
| Weight | 45g |
| Origin | United States |
Fits These Pump Models
This trap cover O-ring works with Pentair WhisperFlo XF pool and spa inground pumps. Also compatible with Sta-Rite IntelliPro variable speed pumps, Sta-Rite Max-E-Pro series pumps, Sta-Rite Max-E-Pro XF series pumps, and Sta-Rite Dyna-Pro and Dyna-Pro E pumps in single and two-speed configurations from 1/2 HP to 2-1/2 HP.
When to Replace
Visual Check
Look for cracks, compression set, or swelling during routine basket cleanings
Preventive Service
Replace O-ring at start of season or after 12 months of continuous use
Active Leak
If you see water dripping from trap cover or pump loses prime repeatedly
Simple Installation
Drop-in replacement takes less than five minutes with basic hand tools
Restores Seal Integrity
Eliminates air leaks that reduce pump efficiency and chemical effectiveness
Protects Equipment
Proper sealing prevents dry running and extends pump seal life
