Product Overview

The Pentair Sand Filter Lateral, Long (152290Z) is a genuine replacement internal component for compatible Pentair sand filters. Laterals sit at the bottom of the filter and act as a “screen,” allowing clean water to pass while keeping filter sand inside the tank. Replacing a cracked or worn lateral can restore filtration efficiency and help stop sand from returning to the pool.

Ideal For

• Replacing a cracked, broken, or clogged sand filter lateral

• Fixing sand blowing back into the pool through return lines

• Restoring proper filtration in compatible Pentair sand filters

• Preventative maintenance during a sand change or filter rebuild

Key Features

• Genuine Pentair replacement part

• Long-style lateral design (matches specific Pentair filter internals)

• Helps keep sand media in the filter while allowing clean water flow

• Supports even water collection and consistent filtration performance

• Item / MPN: 152290Z

Benefits

• Better filtration performance: Restores proper internal water collection.

• Prevents sand return: Damaged laterals are a common cause of sand entering the pool—replacement helps correct it.

• Protects circulation system: Helps avoid sand-related wear in pumps, heaters, and valves.

• Great time-saver during media changes: Easy to replace while the filter is already open.

Installation Notes

• Shut off power to the pump and relieve filter pressure before opening the tank.

• You’ll typically need to remove sand to access and replace laterals.

• Inspect the hub/manifold and other laterals—if one failed, others may be brittle.

• Refill with the correct sand type/amount per Pentair specs and reassemble carefully.

Tip: If sand is returning to the pool, also inspect the standpipe, hub/manifold, and any multiport valve gaskets for wear.

What’s Included

• 1 x Pentair Sand Filter Lateral (Long)

• Item / MPN: 152290Z

Customer-Facing Q&A

Q: What does a sand filter lateral do?
A: It acts like a screen at the bottom of the filter, collecting clean water while keeping the sand media from escaping into the plumbing.

Q: How can I tell if my lateral is bad?
A: Signs include sand in the pool, reduced filtration, or visible cracks/breaks when the filter is opened.

Q: Will this fit my filter?
A: 152290Z is a “long” Pentair lateral used in specific models. Match the part number to your filter’s model/parts diagram to confirm compatibility.

Q: Should I replace just one or all of them?
A: If the filter is older, replacing all laterals during a rebuild is often recommended since they can become brittle over time.

Q: Is replacement a DIY job?
A: It can be, but it often requires removing sand and working inside the tank. If you’re not comfortable, a pool professional can help.