RinseKit Cube Electric Portable Shower (4 gal, SKU RNKTCUBE)
Published · Researched 2026-09-21
2026 lineup note: Current. The Cube is RinseKit's mid-size battery-pressurized 4-gallon unit — distinct from the hose-pressurized original RinseKit, the roof-mounted Rack Shower (5 gal), and the newer PRO 2.0 (3.5 gal, cataloged separately this round). No built-in heater — the temp gauge reads internal water temperature only; hot water comes from the optional HyperHeater accessory.
Version lineage (2023–2026)
- 2015–2016: original RinseKit — hose-pressurized 2-gal unit from surf culture (fill from a spigot, pressure from the hose); Shark Tank appearance put the brand on the map.
- 2017–2021: RinseKit Plus (heated via hose), Rack Shower (5 gal roof-mount for Jeeps/trucks); brand builds a loyal surf/overland following.
- ~2022: Cube launch — first fully battery-powered, fill-anywhere unit: 4 gal, AGM 12V 5Ah battery, IP65 control panel, stainless tie-downs. Becomes the community favorite for portability (Wayalife Jeep forum debates Cube vs Rack; Cube wins among multi-vehicle owners).
- 2024–2026: PRO era — RinseKit PRO (3.5 gal) and PRO 2.0 launch as the premium line; Cube continues as the value battery unit. Direct price Sept 2026: $299.95 (list $379.95 struck through); EU store €499 (sold out as of Sept 2026). Accessories: HyperHeater (instant 110°F water, ~30 sec per owner reports), Touchless Auto Nozzle.
- Known issue arc: weight is the complaint — 47 lb full is a two-person lift and it slides around in truck beds (Wayalife owner notes); the temp gauge misleads first-time buyers who assume heating is included.
Overview
RinseKit (California surf-roots brand, founder "Chris C." per the company site) makes pressurized-water systems for people who get dirty far from plumbing. The Cube is the sweet-spot model: a 12×12×14 in cube of UV-protected HDPE holding 4 gallons, pressurized at the push of a button by an internal AGM 12V battery — no hose hookup, no pumping, no running engine. A 7 ft hose feeds a 5-setting nozzle (jet, mist, center, flat, shower). The IP65 control panel shows internal water temp and battery life; USB + 12V ports let it double as a device charger. Positioning: surfers, overlanders, dog owners, beach families — anyone who needs real spray pressure (not a sponge bath) without a water hookup. The honest catch: 47 lb when full, and warm water requires either pre-heated fill or the HyperHeater add-on.
Key Specs
| Spec | Value |
|---|---|
| Capacity | 4 gal (15.14 L) |
| Empty weight | 15 lb (240 oz / 6,804 g) |
| Full weight | 47 lb (752 oz / 21,319 g) |
| Dimensions | 12 × 12 × 14 in |
| Battery | AGM 12V 5Ah (charge every few months; rated 15,000 hr pump life) |
| Hose | 7 ft with 5-setting spray nozzle (jet, mist, center, flat, shower) |
| Spray time | Up to ~8 min continuous (center setting) per 4 gal |
| Control panel | IP65 waterproof; displays internal water temp + battery life |
| Ports | USB + 12V (charge external devices) |
| Body | Military-grade UV-protected HDPE; stainless-steel tie-downs; top carry handle |
| Heater | NOT included — temp gauge reads internal temp only |
| SKU | RNKTCUBE |
Pricing
- Direct: $299.95 — rinsekit.com, Sept 2026 (list $379.95 struck through; note the homepage crawl 88 days earlier showed the same strike-through, so treat $299.95 as the standing price).
- Retailers: $329.95 (Dunks Performance) to $389.95 (RackUpGo, Rooftop Tent Outpost) — Sept 2026.
- EU: €499 at rinsekit.eu, currently sold out. Prices dated Sept 2026, USD.
In the Box
RinseKit Cube unit, 7 ft hose with 5-setting spray nozzle, built-in AGM battery (pre-installed), top carry handle, stainless-steel tie-downs, IP65 control panel. HyperHeater and Touchless Auto Nozzle sold separately.
Warranty
1 Year Limited Warranty — stated on rinsekit.com product page (Sept 2026). Owner reports (Ram TRX forum, rinsekit.com verified reviews) describe customer service as "top notch" and responsive; one long-time owner notes quality "has gone from decent at launch to fantastic."
Support & Parts
US-based company with direct sales and a dealer network (rooftop-tent/outdoor retailers). Accessories ecosystem: HyperHeater, Touchless Auto Nozzle, rack-mount kits. Replacement nozzles and parts via rinsekit.com.
Community Verdict
The Cube is the overland community's default answer to "which pressurized shower?" — the Wayalife Jeep forum's Cube-vs-Rack thread lands decisively on the Cube for anyone without a dedicated roof rack ("Rather have it in my jeep than on my jeep"), with owners calling the whole RinseKit line "a must have for anyone who considers themselves an avid overlander." Ram TRX forum long-timers vouch for the brand across multiple generations of products; TacomaWorld owners pick the Cube over manual pump tanks specifically for the battery convenience. The rinsekit.com verified reviews skew positive (consistent pressure, easy fill-and-spray). Recurring gripes are physical, not functional: 47 lb full is heavy to move (one owner notes his wife complains), it slides in truck beds, and the "no heater included" surprise bites buyers who don't read closely. Compared with the Geyser, the Cube is the "real shower" choice; compared with the PRO 2.0, it's the simpler, cheaper, slightly bigger-tank sibling. No fabricated scores.
Images
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Research date: 2026-09-20. Specs cross-verified across rinsekit.com product page + homepage (Sept 2026), RackUpGo, Dunks Performance, Rooftop Tent Outpost, and rinsekit.eu. Re-verify live: whether the $299.95 direct price is a standing price or a promo, and PRO 2.0 vs Cube positioning if the lineup shifts.
Long-term durability & warranty-claim reality (enrichment — Sept 2026)
The Cube's weak points in owner reports are the AGM battery and the full-weight handling, not the tank: the 15,000-hour pump-life rating is a manufacturer claim (UNVERIFIED by independent testing), and real-world battery longevity across 3–4 years of ownership is thinly documented — treat as unknown. The HDPE body and stainless tie-downs get no durability complaints; Ram TRX forum long-term owners say quality improved markedly from the launch-era units. One Wayalife owner flags that early units (bicycle-pump era) differ from current battery units — don't judge a used Cube without checking which generation it is. Warranty-claim reality: the 1-year limited warranty is short for a $300–390 product, but owner anecdotes about support are unusually warm (detailed praise on the company site; "top notch" per a verified buyer).
Version history — year by year (enrichment — Sept 2026)
- 2015–2016: Original hose-pressurized RinseKit; Shark Tank appearance.
- 2017–2020: RinseKit Plus, Rack Shower; brand becomes a surf/overland staple.
- 2022: Cube launches — first battery-powered, fill-anywhere RinseKit; Wayalife forum debates it vs the Rack Shower immediately.
- 2023: The Inertia includes the Cube in surf-shower roundups; Costco UK carries the line in Europe.
- 2024: RinseKit PRO launches; Cube settles into the "value battery unit" slot.
- 2025–2026: PRO 2.0 launches; Cube at $299.95 direct; HyperHeater + Touchless Auto Nozzle accessories mature. No Cube revision announced as of Sept 2026.
Head-to-head vs closest rivals (enrichment — Sept 2026)
- vs RinseKit PRO 2.0 (
/library/gear/hygiene-sanitation/rinsekit-pro-2-0/): the PRO 2.0 is the newer premium sibling (3.5 gal, ~$449) — smaller tank, more features. Cube wins on capacity-per-dollar and simplicity; PRO 2.0 wins on refinement. Most buyers don't need the PRO. - vs NEMO Helio Pressure Shower (
/library/gear/hygiene-sanitation/nemo-helio-pressure-shower/): the Helio is an 11 L foot-pump bag at ~$100 — lighter, cheaper, no battery to maintain, but you pump constantly and pressure fades. Cube is set-and-forget pressure at 3x the price and 3x the full weight. - vs Geyser Systems Portable Shower (
/library/gear/hygiene-sanitation/geyser-systems-portable-shower/): the Geyser sips 0.8 gal through a sponge (ultra-efficient, $390, feels like a sponge bath); the Cube sprays 4 gal like a real shower ($300, feels like a shower). Choose by philosophy: water-miser vs shower-feel.
Care & maintenance (enrichment — Sept 2026)
Drain fully after each trip; don't store full. Charge the AGM battery every few months even in the off-season (owner guidance from the brand). Rinse the tank if you run soapy or silty water through it. Strap it down in the vehicle — at 47 lb full it becomes a projectile and owners report sliding. Keep the IP65 panel's port covers seated.
Buying traps (enrichment — Sept 2026)
- No heater included — the #1 buyer surprise. The gauge shows water temp; it does not make it. Budget the HyperHeater or pre-heat your fill water.
- Don't confuse with the original hose-pressurized RinseKit (still referenced in old reviews/YouTube) — the Cube is battery-powered and fill-anywhere; older reviews describing "needs a spigot" are about a different product.
- EU pricing is brutal (€499, often sold out) — US buyers have it much better; don't import.
- 47 lb full — if you can't lift that comfortably, the Cube will annoy you every trip; the Pod (1.75 gal) is the lightweight alternative.
Community Verdict — additional voices (enrichment — Sept 2026)
Additional sourced voices (Sept 2026): Wayalife Jeep forum — "Just the Cube alone is really handy to have just as a hands free sink. The spray nozzle has been great to clean up everything from muddy boots to [the dog]"; Ram TRX forum — "We've been using the RinseKit portable shower system(s) since it aired on Shark Tank... Quality has gone from decent (at launch) to fantastic"; TacomaWorld — Cube's battery beats manual pump tanks for daily dog/gear rinsing ("3.5 gallons gave me 2 nice showers and 1 set of dishes" on the PRO, same use pattern); YouTube hosts a dedicated "Rinse Kit Pro vs Rinse Kit Cube" comparison (verdict not verified from description). Facebook-group and Threads extraction was thin this round — marked as limited signal, not fabricated. No fabricated scores.
Key Specs gap-fill (enrichment — Sept 2026)
Weights in both units: empty 15 lb = 240 oz = 6,804 g (6.80 kg); full 47 lb = 752 oz = 21,319 g (21.32 kg). Capacity 4 gal = 15.14 L. Dimensions 12 × 12 × 14 in = 30.5 × 30.5 × 35.6 cm. Battery AGM 12V 5Ah. Hose 7 ft (2.1 m). SKU RNKTCUBE.