I’ve been selling RV water pumps since before either of these brands had the market position they hold today, and the Shurflo versus Flojet question is one I field regularly. It usually comes from an RV owner whose existing pump has finally given up—after years of faithful service or sometimes frustratingly early—and who wants to make a considered choice about the replacement rather than just buying what came out. It’s a reasonable question because both brands are genuinely good, both have loyal followings, and the differences between them are real but nuanced.
The short version: both Shurflo and Flojet make capable RV water pumps that will serve most RV owners well for years. The longer version involves understanding what each brand does particularly well, where their engineering philosophies differ, and which of those differences actually matter for the way you use your RV. That’s what this comparison is designed to provide.
I’ve sold, installed, and heard feedback on both brands across thousands of customers. This is my honest, experience-based assessment—not a spec sheet comparison, but a real-world evaluation of how these pumps perform in the conditions RV owners actually encounter.
Shurflo built its RV water pump reputation on one foundation: reliability under the demanding conditions of RV use. Their pumps are designed to handle the intermittent operation, the variable loads, and the wide temperature range that RV plumbing systems experience. They’re also designed to be quiet—a feature that matters more than most people realize when the pump is cycling on and off throughout the night in a sleeping rig. Shurflo’s approach is conservative and proven: build a pump that does its job consistently, doesn’t make excessive noise, and doesn’t require attention.
Flojet comes from a marine heritage—they’ve been building pumps for boat applications for decades, and that background shows in their engineering. Marine applications are demanding in different ways than RV use: saltwater exposure, high humidity, extreme vibration from engine operation, and the expectation that the pump will simply work when you need it, regardless of conditions.
The Flojet Triplex design—a three-chamber piston pump—reflects marine-grade thinking applied to the RV market: more pumping chambers for smoother flow, more robust materials for demanding environments.
The two pumps in this comparison represent each brand’s primary RV offering in the RV Upgrade Store:
The Flojet Triplex delivers 2.9 GPM at its rated flow, which is at the higher end of the performance range for residential RV water pump applications. The triplex (three-chamber) design is a meaningful engineering choice here: where a single or dual-chamber pump delivers water in pulses—one surge per chamber stroke—the three-chamber design overlaps the stroke cycles to produce a more continuous, smoother flow. This matters in practice as reduced pressure fluctuation at the tap. You notice a triplex pump as water that flows smoothly rather than pulsing slightly with each pump cycle.
The Shurflo SLV operates as a demand-type diaphragm pump—it activates when pressure drops below a preset threshold and shuts off when pressure is restored. The flow rate and pressure output are appropriate for the single-station applications the pump is designed for: a bathroom sink, a kitchen sink, or a single shower head. For RV owners whose water system serves one fixture at a time, the Shurflo’s demand-response behavior is well-matched to the usage pattern.
If you regularly run multiple water fixtures simultaneously—shower and kitchen sink at the same time, for instance—the Flojet’s higher flow rate and smoother delivery maintain adequate pressure at both points. The Shurflo is sized for single-station use; asking it to supply two simultaneous demands may result in pressure that’s noticeably lower at both fixtures than either one alone.
Noise is where Shurflo’s reputation is strongest, and it’s a genuine performance differentiator. Shurflo has invested significantly in vibration isolation and motor noise reduction over its product generations, and the result is a pump that’s noticeably quieter than most competitors when it cycles on. In a small RV interior where the pump is mounted in a compartment a few feet from where people are sleeping, the difference between a quiet pump and a noisy one is the difference between a cycle you barely notice and one that wakes you up.
The Flojet Triplex is not a particularly noisy pump—its marine heritage demands reasonable acoustic performance—but it’s generally considered slightly louder than equivalent Shurflo models during operation. The three-chamber mechanism generates somewhat more mechanical noise than a diaphragm pump, and while that noise is within acceptable limits for most installations, RV owners who are particularly sensitive to pump noise or who park in quiet campgrounds will notice the difference.
Mounting matters for both brands. Any water pump mounted directly to a hard surface will transmit vibration noise through that surface into the structure of the rig. Mounting the pump on rubber isolators—vibration-dampening mounts between the pump feet and the mounting surface—dramatically reduces transmitted noise for either brand. If pump noise is a priority, invest in quality mounting isolators regardless of which brand you choose.
Both Shurflo and Flojet build their RV pumps with materials appropriate for potable water contact and long-term immersion in water. The housings, diaphragms, and internal components are rated for the chemical range of typical RV water supplies and treatments.
The Flojet Triplex’s marine heritage shows in its material specification—the components are selected for durability in environments more demanding than typical RV use. This over-specification for the RV application translates to a pump that tends to handle edge conditions—running dry briefly, occasional backpressure spikes, higher-than-normal water temperatures—without the accelerated wear that these conditions can cause in less robustly specified pumps.
Shurflo’s durability record in the RV market is well-established through sheer volume—they’ve been the factory-installed pump in millions of RVs, which means there’s an enormous base of real-world performance data. The consistent feedback from that installed base is that Shurflo pumps serve for years with minimal maintenance in normal RV use conditions. For typical RV applications with properly treated water and regular operation, both brands deliver comparable longevity.
The Flojet is the better choice when you want higher flow capacity for multi-fixture simultaneous use, when the smooth pressure delivery of the triplex design matters for shower experience, or when you’re installing a pump in an environment that’s genuinely demanding—high humidity, temperature extremes, or heavy daily use in a full-timer setup. Its marine-grade specifications provide a margin of durability that standard RV use doesn’t necessarily require, but that demanding use will appreciate.
The Flojet is also the right choice for RV owners who are upgrading from an entry-level pump and want a noticeable improvement in water system performance. The higher flow rate and smoother delivery represent a real upgrade in shower quality and multi-fixture capability.
The Shurflo is the better choice for single-station applications where the pump’s modest flow rate is well-matched to the demand, where quiet operation is a priority, and where you want the peace of mind of replacing a failed factory pump with a product from the brand most commonly used by RV manufacturers in the first place. If your rig came with a Shurflo and it served reliably for years, replacing it with another Shurflo is a sensible choice that requires no system modifications.
The Shurflo is also the right choice for budget-conscious owners who want a quality pump at a lower price point. Shurflo’s high-volume manufacturing translates to competitive pricing without compromising on the core performance characteristics that matter for RV water supply.
Both pumps use standard 1/2-inch or 3/8-inch barbed fittings and install in the same location in your RV’s freshwater system—between the freshwater tank (or city water inlet) and the distribution lines. The pump size and mounting footprint are similar between the two brands, though you should confirm the dimensions of your replacement pump against the available mounting space before ordering.
Regardless of which brand you choose, mount the pump on rubber vibration isolators, use flexible braided supply lines at the inlet and outlet connections, and install a filter screen on the inlet side to prevent debris from entering the pump from the freshwater tank. These installation practices improve performance and extend pump life for both brands equally.
The Shurflo versus Flojet debate doesn’t have a wrong answer—both brands make quality pumps that will serve the vast majority of RV owners well for years. The Flojet Triplex delivers higher flow capacity and smoother pressure delivery at a slight premium in cost and noise. The Shurflo SLV delivers quiet, reliable single-station performance at a competitive price from the brand with the deepest RV market track record.
My recommendation for most RV owners doing a straightforward replacement: if your previous pump was a Shurflo and it performed well for you, another Shurflo is the sensible choice. If you’re upgrading because you want better multi-fixture performance or smoother water pressure, the Flojet Triplex is worth the additional investment.
Either way, you’re buying from brands that have earned their positions in this market through performance and reliability. The decision between them is a refinement, not a risk. If you’re still undecided, give us a call at the store—I’m happy to talk through your specific setup and usage patterns to help you pick the right pump.
I’m Bill Rowell, the founder of RVupgrades.com. In 2002, I launched the business to help fellow RV enthusiasts find unique and hard-to-find products. Over the years, it’s grown to offer more than 15,000 items, with a warehouse in Eastlake, Ohio. Having owned and repaired nearly every type of RV, I bring over two decades of hands-on experience to the table. For me, this isn’t just a business – it’s a passion and a way of life that I love sharing with the RV community.
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