FRP and GRP Water Tank Supplier Serving the Philippines Nationwide

FRP and GRP describe the same product: a modular, panelized water tank built from corrosion resistant composite panels bolted together on site, rather than welded or cast as one piece. The two names come from different regions using fiberglass reinforced plastic (FRP) and glass reinforced plastic (GRP) interchangeably for the same panel technology. JOHOB Hardware Trading supplies FRP and GRP tanks as part of its Water Storage product category, which also covers HDG and stainless steel modular tanks. JOHOB sources tank panels from a vetted overseas manufacturer holding ISO 9001 certification, then supplies, delivers, and supports the tank locally with warranty and after-sales service across the Philippines.

For turnkey FRP/GRP installation projects, JOHOB works through its sister brand TankSmith, which specializes in modular water tank installs. This supplier model means buyers get a single Philippines-based point of contact for sourcing, quoting, and after-sales support, without needing to coordinate directly with an overseas factory.

Procurement teams evaluating an FRP or GRP tank supplier should confirm panel certification, local lead time, and VAT treatment before comparing price, since these three factors affect total project cost more than the unit price of the tank itself. Buyers evaluating this construction type against steel or stainless alternatives should see the dedicated comparison guide linked below rather than treating this page as the full technical comparison.

Every FRP and GRP tank JOHOB supplies carries WRAS certified panels, a standard specifically tied to tank construction that confirms the materials are safe for potable water contact. The panels are produced under a manufacturer quality management system certified to ISO 9001, and the manufacturing process is TUV SUD tested. Together these three certifications cover material safety, manufacturing process control, and independent third party testing, the three checks most PH procurement officers ask for when qualifying a tank supplier for a government, hospital, hotel, or food facility project.

For projects that also require pressure vessel components, such as a hydropneumatic tank paired with a booster pump set, those components can be supplied to ASME standards where the application calls for it. Buyers requesting a quote can ask JOHOB for the specific certification documents tied to their project's tank model and capacity, since certification scope can vary slightly by panel size and tank configuration.

JOHOB responds to RFQs within 1 business day, so certification paperwork can usually reach a buyer before a formal quote is finalized, which matters for institutional buyers running the request through a compliance or procurement office rather than a single decision maker. The regulatory picture is mapped in our Philippines water tank compliance guide.

JOHOB supplies FRP and GRP water tanks nationwide: NCR, the rest of Luzon, Visayas, and Mindanao are all in scope, not just Metro Manila. This matters for FRP and GRP specifically, because the modular panel format is what makes nationwide delivery practical in the first place. A tank built as panels ships and travels far more easily than a one piece tank of equivalent capacity.

Coverage also extends to PEZA zones, the Subic Bay Freeport (SBMA), and Clark. These zones carry their own tax treatment, and JOHOB prices FRP and GRP tank projects accordingly: buyers operating as PEZA or SBMA locators or as exporters are zero rated for VAT, while standard VAT registered buyers outside those zones pay the standard 12 percent VAT. A procurement team inside an economic zone does not need to negotiate this separately, it is the standard quote basis JOHOB applies once the buyer confirms zone status at RFQ stage.

Because the certifying bodies (WRAS, TUV SUD, ISO 9001) are international standards rather than Philippine specific marks, the same certification paperwork applies whether the installation site is in Clark, Cebu, or Davao.

JOHOB does not publish fixed prices for GRP/FRP tanks on this page. The final cost depends on tank capacity, panel configuration, site access conditions, and whether the unit is ex stock or made to order, so every project gets a quote built to its own specification.

Lead time depends on stock status: tanks available ex stock ship in 21 to 35 days, while made to order configurations, which cover non standard capacities or panel specifications, take 45 to 90 days. Factoring lead time into project planning early matters more for GRP/FRP tanks than for off the shelf equipment, since a made to order tank on a tight construction schedule can become the critical path item if the request for quote is delayed. JOHOB's 1 business day RFQ response is designed to remove that delay from the buyer's side of the timeline, so the remaining lead time is the manufacturing and shipping window itself, not time spent waiting for a quote.

On VAT: standard VAT registered buyers pay the 12 percent VAT, while PEZA and SBMA locators and exporters are zero rated. JOHOB responds to every RFQ within 1 business day, so a buyer comparing JOHOB against another FRP or GRP supplier can expect a like for like quote fast enough to run a real comparison rather than waiting on one supplier while others have already answered.

GRP/FRP tanks, galvanized or hot dip galvanized (HDG) steel tanks, and stainless steel (SS) tanks are all modular panel tank options JOHOB supplies, and the right choice depends on the water quality requirements and budget of the specific project. GRP/FRP panels are corrosion resistant by composition, which removes the galvanic corrosion risk that steel tanks carry over time, particularly in coastal or high humidity sites.

Stainless steel tanks carry a higher material cost but are preferred for some food grade or pharmaceutical adjacent applications where buyers specify SS by default. HDG steel tanks sit at a lower cost point than GRP/FRP or SS for buyers whose water quality requirements do not require composite or stainless construction. Buyers actively deciding between GRP/FRP and a stainless or steel alternative should use JOHOB's dedicated comparison guide, which covers the tradeoffs in more depth than belongs on a supplier page. JOHOB can quote more than one material side by side for a buyer who has not yet decided, so the comparison is based on the same site conditions and capacity requirement rather than generic published specifications.

Either way, the certification and lead time terms on this page, WRAS, TUV SUD, ISO 9001, and the 21 to 90 day lead times, apply to the FRP and GRP line specifically. Stainless and galvanized steel tanks are quoted under their own terms and are not covered by this page.

Requesting a quote starts with four pieces of information: required capacity, installation site, including whether it is a PEZA, SBMA, or Clark zone location, intended use, and target installation date. Submitting those up front lets JOHOB return a complete quote on the first reply rather than a round of clarifying questions.

JOHOB responds to RFQs within 1 business day. The quote will state whether the configuration is available ex stock, 21 to 35 days, or made to order, 45 to 90 days, and will apply 12 percent VAT or zero rated VAT depending on the buyer's confirmed zone or exporter status.

Buyers who need WRAS or TUV SUD documentation for a procurement or compliance file can request it at this stage rather than after the quote is accepted. For projects where JOHOB's TankSmith sister brand handles the turnkey install, panel assembly plus commissioning on site, rather than supply alone, the RFQ can be routed to TankSmith directly, and JOHOB's quote will note that handoff rather than leaving the buyer to find it separately.

Buyers who are also sourcing connected equipment, such as booster pump sets, VFD control panels, or fire protection components for the same site, can request a combined quote so the tank and connected systems are sized and quoted together rather than separately. This is useful on projects where pump selection depends on tank height and outlet configuration, since quoting both together avoids a mismatch discovered after installation has already started.

• FRP Modular Water Tank: Full Specifications
• TankSmith: Turnkey Water Tank Installation
• Pumping and Pressure Systems
• Guide: FRP vs Stainless Steel Water Tank
• Guide: Water Tank Compliance in the Philippines
• Case Study: 500-Bed Commercial Laundry, Taguig

Reviewed: November 2026