Pentair 36" x 1/4" Tie Rod 88 gpm

The Pentair 36" x 1/4" Tie Rod (88 GPM) (Part #59019502) is a specialized, zinc-plated steel anchoring fastner engineered exclusively for Pentair large-format, vertical-grid Diatomaceous Earth (D.E.) pool and spa filtration systems that operate at a flow rate of 88 gallons per minute. Measuring 36 inches in total length with a thin 1/4-inch diameter thread profile, this long metallic rod runs down the exact centerline of the grid nest assembly. Its primary structural function is to compress and securely clamp the heavy top distribution manifold directly against the lower support grid plate. By providing unyielding vertical tension across the core assembly, it ensures that the fragile internal filter grids maintain perfect geometric spacing and do not twist, shift, or telescope outward under heavy hydraulic pressures or sudden pump-surge cycles.

As a long, slim steel fastener, its individual weight profile is relatively low but highly concentrated:

• Actual Product Weight: Approximately 0.45 to 0.55 pounds (roughly 7.2 to 8.8 ounces).

• Packaged Shipping Weight: Typically scales around 1.0 to 1.5 pounds solely due to the long, awkward protective mailing tube or extended rectangular box dimensions required to ship a 3-foot long metal rod without bending.