FRP Rectangular Graywater Holding Tank Supplier in the Philippines

An FRP rectangular graywater holding tank is a modular fiberglass tank assembled from bolted panels into a cuboid shape, built to store reclaimed wash, rinse, or process water on site before reuse or discharge. The rectangular footprint is chosen specifically because it fits against a wall, under a mezzanine, or inside a utility room where a cylindrical tank would waste floor space. JOHOB Hardware Trading supplies this tank configuration as part of its Water Storage product line, under the FRP and GRP modular tank category sourced through an ISO 9001 certified partner factory. Because the tank is bolted rather than welded or molded as a single piece, it ships in panel sections and is assembled on site, which keeps transport and crane requirements lower than a one-piece tank of the same capacity. Panels used in these tanks are WRAS-certified and TUV SUD tested, and where electrical dosing or transfer components are added to the system, those components carry CE marking. JOHOB does not manufacture the tank shell itself; it is sourced from a vetted overseas manufacturer and supplied with local warranty and after-sales support across the Philippines, covering NCR, Luzon, Visayas, Mindanao, and PEZA or SBMA zones.

A rectangular FRP tank holds the same graywater volume as a round tank in a smaller overall footprint, because its flat sides can sit flush against a wall or inside a corner instead of needing clearance on every side. This matters most in retrofit sites: hotel basements, hospital utility floors, laundry back-of-house areas, and food processing plants where the graywater holding tank is being added after the building is already built and floor space is already allocated to other equipment. The bolted panel construction JOHOB supplies allows the tank to be built up section by section through a doorway or hatch that a one-piece tank could never pass through, then assembled in place. This is the same modular panel approach used across JOHOB's FRP, GRP, and HDG water storage range, and it is also the install method used by JOHOB's sister brand TankSmith for turnkey modular tank projects. Because the panels bolt together rather than requiring on-site welding or lamination, assembly timelines are more predictable, and the tank can be resized at the design stage by adding or removing panel rows, within the lead times JOHOB quotes for ex-stock or made-to-order configurations.

There is no fixed size chart for this tank. Capacity is set per project by the number of panel rows and columns specified, matched to the footprint and daily graywater volume the site needs to hold between treatment or discharge cycles. Once JOHOB has the site's footprint and target volume, the configuration is quoted and assigned a lead time based on whether it can be built from stock panel sizes or needs a made-to-order size. Standard lead time is 21 to 35 days when the configuration is already ex-stock. Made-to-order sizes, which cover most rectangular graywater tanks since the shape is usually project-specific rather than a catalog size, run 45 to 90 days. JOHOB responds to every RFQ within 1 business day, which lets a buyer confirm whether their footprint falls into the ex-stock or made-to-order lead time before committing to a design. Pricing is quote-based and not published, since the final price depends on panel count, fittings, and site conditions. Buyers working under PEZA or SBMA registration, or exporter accounts, should request the zero-VAT commercial terms at quote stage rather than after the order is placed, since this affects the final invoice.

The FRP panels used in JOHOB's rectangular graywater holding tanks are WRAS-certified and produced by a manufacturer holding ISO 9001 quality management certification, with TUV SUD testing on the panel system. Where the tank is supplied with electrical float switches, transfer pumps, or control panels, those electrical components carry CE marking, and any pressure-rated piping accessories are supplied to ASME standards where applicable. Commercial terms are the same as JOHOB's other water storage products: 12% VAT applies to VAT-registered buyers, while PEZA and SBMA locators and exporter accounts qualify for zero-VAT billing under JOHOB's standard commercial terms. JOHOB does not publish list prices for this tank, since each configuration is quoted individually after the footprint and volume are confirmed, and every RFQ receives a response within 1 business day. Coverage is nationwide: NCR, Luzon, Visayas, Mindanao, and PEZA, SBMA, or Clark-registered sites all fall within JOHOB's standard delivery and installation support area, with local warranty and after-sales service backing the supplied tank regardless of region.

A rectangular graywater holding tank fits sites where floor space is already committed and a cylindrical tank would not fit the remaining footprint. This includes commercial and institutional buyers in JOHOB's existing verticals: hotel back-of-house laundry and housekeeping areas, hospital utility floors, and food processing or commercial laundry sites where wash and rinse water is held before treatment, reuse, or discharge. Buyers operating inside PEZA, SBMA, or Clark zones also specify this tank shape when their facility layout was designed around rectangular utility rooms rather than open yard space for a round tank. Because the tank is part of JOHOB's broader Water Storage and Pumping and Pressure Systems categories, buyers frequently pair it with transfer or booster pump systems to move the held graywater to a treatment skid or discharge point, and with VFD duplex panels where the transfer system needs to run continuously. JOHOB's sister brand TankSmith handles turnkey modular tank installs for buyers who want the tank and installation bundled rather than supplied as equipment only.

JOHOB Hardware Trading supplies this tank as part of a Philippines-based industrial equipment business serving commercial, industrial, and institutional buyers nationwide, not as a single-product import operation. The tank itself comes from a vetted overseas manufacturer holding ISO 9001 certification, but JOHOB owns the quote, lead time commitment, local warranty, and after-sales support once the tank lands in the Philippines. Buyers get one point of contact for the tank, its WRAS-certified panels, and any pumping or electrical components added to the system, rather than coordinating separately with a factory and a local installer. Coverage spans NCR, Luzon, Visayas, Mindanao, and PEZA, SBMA, or Clark-registered sites, with the same 1 business day RFQ response and the 21 to 35 day ex-stock or 45 to 90 day made-to-order lead times that apply across JOHOB's water storage line. For buyers who want the tank installed as a turnkey system rather than supplied as equipment only, JOHOB's sister brand TankSmith handles the modular tank install directly.