Aladdin O-136 Pentair Ultra Flo Lid O-Ring | 39300300

The Aladdin O-136 Pentair Ultra Flo Lid O-Ring is a precision-molded seal crafted to match the original dimensions of Pentair part 39300300, ensuring secure and reliable sealing on Ultra Flo pump lids. Its chemical-resistant elastomer maintains flexibility under pressure, forming a tight barrier that helps prevent suction-side air leaks, loss of prime, and reduced hydraulic performance. The O-136 fits the lid groove cleanly according to the original Pentair sealing profile, allowing fast installation during routine maintenance or pump servicing. Designed for dependable operation, it supports stable suction and efficient water movement throughout the Ultra Flo pump system.

Highlights

• Matches 39300300 Specs: Sized to follow the original Pentair 39300300 sealing profile for accurate fit and consistent Ultra Flo lid performance.

• Stops Air Intrusion: Forms a uniform, watertight seal that helps maintain pump prime, reduces air draw, and prevents circulation disruptions.

• Durable Elastomer Material: Withstands chlorine, heat, and daily pressure cycles without flattening, cracking, or losing elasticity.

• Clean Groove Seating: Precision-molded shape drops smoothly into the lid channel for quick, straightforward installation during pump service.

• Improves Flow Stability: Helps eliminate suction issues that can reduce system efficiency, supporting reliable and balanced pump output.

Compatibility

• Pentair Ultra-Flo Pumps

Additional Info

The Aladdin O-136 Ultra Flo Lid O-Ring replaces Pentair 39300300 and provides a reliable seal that prevents air leaks in Ultra Flo pumps. This FAQ supports Wholesale Pool Mart customers comparing local pricing, confirming nearby stock, and planning service visits. These details help ensure the O-136 supports stable suction and dependable pump performance.

Compatibility and Fitment Details

Technicians and DIY customers often verify the correct O-ring size before beginning pump service. This section outlines how to confirm proper match.

Is the O-136 the correct replacement for Pentair 39300300?

Yes, the O-136 is molded to the same specifications as Pentair’s 39300300 Ultra Flo lid seal. If your pump lid references this part, the O-136 is the correct gasket.

Will this O-ring fit consistently across all Ultra Flo pump lids?

Yes, Ultra Flo lids use a standardized groove size. The O-136 seats evenly in the channel and maintains uniform compression during operation.

Can replacing this O-ring resolve suction-side air leaks?

In many cases, yes. A flattened or cracked lid O-ring is a common cause of loss of prime. Installing the O-136 helps restore a tight seal.

Installation, Maintenance, and Service Planning

Service professionals preparing for a job often want clarity on installation technique and post-install checks.

How should the O-136 be installed during pump service?

Clean the groove, apply a thin layer of silicone lubricant, and seat the O-ring evenly. Avoid stretching it excessively. Reinstall the lid and tighten evenly for proper sealing pressure.

What symptoms indicate that my old O-ring has failed?

Air bubbles in the pump basket, slow priming, or an inability to hold suction are typical signs. Replacing the O-ring is a common first step in suction-side troubleshooting.

How do technicians verify the seal after installation?

After priming, the pump should run smoothly with no air pockets. A consistent water level in the pump pot indicates that the lid seal is functioning properly.

Local Pricing, Stock, and Service Coordination

Wholesale Pool Mart customers often work across multiple locations when preparing for pump repairs.

Is the O-136 generally available across nearby Wholesale Pool Mart stores?

Yes, due to the Ultra Flo pump’s wide installation base. Checking local pricing helps plan for service jobs that involve multiple pump rebuilds.

What information should I have handy before calling for availability?

Pump model, lid part number, and photos of the lid groove help staff confirm the correct O-ring quickly. This reduces delays when gathering parts across locations.

Do professionals often replace other parts alongside the O-136?

Yes, they frequently pair this O-ring with diffuser gaskets, shaft seals, or pump lids. Bundling components ensures a complete and efficient rebuild.