FRP 1000 LPH vs SS 500 LPH Water Tank Systems: Cost Comparison Guide

Buyers comparing an FRP 1000 LPH system against an SS 500 LPH system are really comparing two different decisions bundled into one question: tank shell material, and pump duty. Tank shell material (FRP/GRP versus stainless steel) sets a relatively fixed cost difference at a given capacity, since FRP/GRP modular tanks are generally lighter and faster to install on site than welded or bolted SS panel tanks of the same size. Pump duty is the variable that moves the most. A 1000 LPH duty typically calls for a larger motor than a 500 LPH duty, and depending on how many outlets draw simultaneously, may require a VFD duplex panel rather than a single fixed-speed pump. That panel, its control wiring, and its commissioning time usually account for a larger share of the total price gap than the tank shell itself. Because JOHOB does not publish fixed prices (every system is quoted against the buyer's actual capacity, LPH duty, and site conditions), this guide focuses on what moves cost up or down rather than a fixed peso figure. JOHOB quotes the tank and the pump system together as one RFQ, which lets a buyer see the real total cost difference between an FRP 1000 LPH configuration and an SS 500 LPH configuration side by side, rather than comparing tank price alone.

At the same storage capacity, FRP/GRP modular tanks are generally priced lower than stainless steel panel tanks, largely because SS panels involve more raw material cost and more fabrication or welding labor per unit of capacity. FRP/GRP modular tanks also tend to assemble faster on site, which can reduce installation labor cost further. Stainless steel is often chosen anyway for applications where corrosion resistance, potable water purity, or a longer service life under harsh conditions matters more than upfront cost, so the two materials are not strict substitutes even at equal capacity. JOHOB supplies both FRP/GRP modular tanks and stainless steel modular tanks, with the stainless steel line supplied under the TankSmith sister brand, so a buyer weighing an FRP 1000 LPH shell against an SS 500 LPH shell can request quotes for both materials at both capacities and compare the actual shell-only cost difference before adding pump duty into the decision. Tank panels across both material lines are WRAS-certified. Because pricing is quote-based and depends on final capacity, site access, and installation scope, this section describes what moves shell cost, not a fixed price list.

Doubling flow rate from 500 LPH to 1000 LPH is not a linear cost increase on the tank side, it is a pump and control panel decision. A higher LPH duty generally requires a larger motor to maintain pressure at peak demand, and where multiple outlets or floors draw water at the same time, a duplex arrangement with a VFD panel is often specified instead of a single fixed-speed pump, so that a second pump can share or take over the load. JOHOB supplies booster, transfer, and submersible pumps, along with VFD duplex panels built on Inovance components, sized to the buyer's actual specified LPH duty rather than a generic capacity band. Electrical panels supplied for these systems carry CE marking. Because a duplex VFD panel adds electrical, control, and commissioning cost beyond a single fixed-speed pump, the pump duty difference between a 1000 LPH and a 500 LPH system is frequently the larger of the two cost drivers in this comparison, larger than the difference in tank shell material. Buyers should size the pump to actual peak simultaneous demand, not just to the tank's fill rate, before requesting a quote.

Both the FRP/GRP and stainless steel tank lines JOHOB supplies use WRAS-certified panels. Manufacturing for the tank and pump equipment JOHOB sources is carried out by an ISO 9001 certified partner factory, and components are TUV SUD tested. Electrical panels, including the VFD duplex panels used in higher-duty booster systems, carry CE marking. These standards apply across both the FRP 1000 LPH configuration and the SS 500 LPH configuration described in this guide, so certification coverage is not a differentiator between the two options, the tank material and pump duty decisions described above are. Buyers evaluating suppliers for a commercial, industrial, or institutional project in the Philippines should confirm which of these certifications apply to the specific tank and pump combination being quoted, since certification scope can vary by component (for example, CE marking applies to electrical panels and material handling equipment, not to the tank shell itself). JOHOB can confirm applicable certifications for a given configuration as part of the RFQ response.

Standard 12% VAT applies to VAT-registered buyers on both the FRP 1000 LPH and SS 500 LPH system quotes. Buyers operating as PEZA or SBMA locators, or as exporters, qualify for zero-VAT treatment on the same quotes. Lead time depends on whether the configuration is available ex-stock or made-to-order: ex-stock lead time runs 21 to 35 days, while a made-to-order configuration, which is more common for larger or duplex VFD panel builds, runs 45 to 90 days. These lead times apply to both tank materials and both capacity duties covered in this guide, so the deciding factor on delivery timing is usually whether the specific tank and pump combination is held in stock, not which material or LPH duty was chosen. JOHOB delivers nationwide, covering NCR, Luzon, Visayas, Mindanao, and PEZA, SBMA, and Clark locations. RFQ responses are returned within 1 business day, so a buyer can get a lead-time and VAT-adjusted quote for both the FRP 1000 LPH and SS 500 LPH options early enough to plan a project timeline around it.

Because pricing for both the FRP 1000 LPH and SS 500 LPH systems is quote-based and depends on final capacity, pump duty, site access, and whether a duplex VFD panel is required, this guide cannot publish a fixed cost figure for either configuration. To get an accurate, comparable quote for both options, a buyer should submit: required storage capacity in liters, required flow rate in LPH, number of simultaneous outlets or peak demand points, site location (including whether it falls under PEZA, SBMA, or Clark for VAT treatment), and installation access constraints. JOHOB responds to RFQs within 1 business day and can quote the FRP 1000 LPH configuration and the SS 500 LPH configuration side by side from the same submission, so the buyer sees the real total cost difference, tank plus pump plus panel, rather than a tank-only comparison. See the water storage systems and pumping and pressure systems product pages for the full range of tank materials and pump configurations available before submitting an RFQ.