Filter Media Retainers

The Town of Cary, North Carolina is requesting bids for high-strength thermoplastic media retainers for the Cary-Apex Water Treatment Facility biofiltration conversion project under RFB 354-RFB-27-09, with bids due September 25, 2026 at 10:00 a.m. ET and questions due September 14, 2026 by 5:00 p.m. ET.

The scope comprises 356 units or 1,424 square feet of filter media retainers designed to replace support gravel in two filter basins during conversion from conventional dual-media filtration to biofilters. Retainers must be compatible with existing Leopold Type S Underdrain systems and meet NSF/ANSI 61 certification for potable water applications. Bidders must demonstrate a minimum of ten installations on Leopold Type S Underdrains at U.S. water treatment facilities within the past five years and provide complete specification sheets and dimensional drawings. The equipment manufacturer must have a minimum of ten years of design and manufacturing experience with media retainers for water treatment.

All bids must include field instruction service consisting of up to six days of eight-hour onsite visits and four days of travel time for installation training; costs are included in the bid price. Bid pricing must cover all freight, handling, 316 stainless steel screws, and manufacturer-recommended sealant, submitted separately from North Carolina sales tax. Delivery is required Monday through Friday between 7:00 a.m. and 3:00 p.m. at 1400 Wimberly Road, Apex, NC 27523, with coordination through facility management.

The contract is fixed-price for one year with options to extend for two additional one-year periods, subject to price adjustments tied to the All Urban Consumers Price Index (CPI-U) with increases or decreases documented and submitted at least 60 days prior to contract anniversary dates. Payment terms are Net 30 days from receipt of a correct invoice or upon acceptance of goods, whichever is later. The Town reserves the right to award to the lowest responsive, responsible bidder considering quality, performance, and delivery timeframe. The anticipated award date is October 2026. Bids will be publicly opened virtually via Webex on September 25. Town responses to questions are due by September 17, 2026.