Pentair Nut Wing Kit .25" 20 | 35402-0074Z
Pentair
SKU: 35402-0074Z
Pentair 35402-0074Z Brass Wing Nut (1/4"-20) for Sta-Rite / Pentair D.E. Filters
The Pentair 35402-0074Z is an OEM brass wing nut with 1/4"-20 threads used on select Pentair Sta-Rite D.E. filter assemblies. It is commonly used on the tie-rod/manifold hardware to secure internal filter components. Replacing a worn, stripped, or missing wing nut helps keep the manifold assembly properly clamped for dependable filtration and easier future service.
Key Details
- Part number: 35402-0074Z (also referenced as 35402-0074)
- Thread size: 1/4"-20
- Material: Brass
- Type: Wing nut (tool-free tightening/loosening)
Common Compatibility
- Pentair Sta-Rite DEP-Series D.E. filters
- Pentair / Sta-Rite System:3 D.E. filters (select models)
- Select SwimQuip / Pentair D.E. filter assemblies that use a 1/4"-20 wing nut on the tie rod
Verify fit by checking your filter model and confirming the wing nut thread size on your existing hardware (1/4"-20).
When to Replace
- Wing nut threads are stripped or won’t tighten securely
- Nut is seized/corroded and difficult to remove during cleaning
- Nut is missing after service
- Visible deformation that prevents even clamping
Installation Notes
- Shut off the pump and relieve filter pressure before opening the filter.
- Hand-tighten only—do not over-tighten, which can stress tie rods or internal components.
- If tightening feels uneven, inspect the tie rod, manifold, and sealing surfaces for damage or misalignment.
- After reassembly, restart the system and check for leaks and proper pressure.
Related Products (Aqua Pool Supply)
- Sta-Rite DEP Filter O-Rings & Gaskets (Search)
- System:3 D.E. Filter O-Rings & Seals (Search)
- Sta-Rite DEP Air Relief / Pressure Parts (Search)
- Sta-Rite DEP Manifold & Internal Hardware (Search)
Maintenance Tips
- Always bleed off air and pressure before opening the filter to protect components and threads.
- Rinse D.E. grids thoroughly during cleanings to reduce strain and keep pressures normal.
- If hardware is difficult to remove, address it during service—forcing parts can damage tie rods and manifolds.
- Inspect internal seals and O-rings during each tear-down; replacing worn seals helps prevent leaks and air intrusion.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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