Water & food
Gravity Water Filter
Hangs from a branch and filters by gravity alone, so it works while you do something else. Look at the flow rate and the cartridge life, not the headline capacity.
44 items
Hangs from a branch and filters by gravity alone, so it works while you do something else. Look at the flow rate and the cartridge life, not the headline capacity.
Appears inA Quiet Place
Ordinary shelf-stable food bought in depth rather than special rations. Cheaper, and you already know you will eat it.
Appears inDon't Look Up
Uses sun and a sheet to condense drinkable water from damp ground or seawater. Yield is small and slow, and it needs sun.
Appears inCast Away
Folds flat when empty, which is the entire point. Look for a rigid spout and a handle that survives being full.
Appears inMad Max: Fury Road
A hand-operated reverse-osmosis pump that makes seawater drinkable. Physically hard work for a small steady output.
Appears inWaterworld
Larger gravity system for a group rather than a person. Rated in litres per hour.
Appears inDon't Look Up
Ultraviolet light that neutralises organisms in clear water. Needs batteries, and does nothing about sediment or chemicals.
Appears inThe Bay
Single-wall steel can be boiled in, which plastic and double-wall cannot. A quiet advantage.
Appears inWorld War Z
Turns whole grain into flour by hand. Whole grain stores for years; flour does not.
Appears inKnowing
The simplest possible reserve. Rotate it, keep it off concrete, and it needs no equipment at all.
Appears inThe Bay
A burner that threads onto a gas canister and packs into a fist. Wind resistance matters more than raw output.
Appears inThe Road
Double-walled steel that holds temperature for hours. The lid is what fails first; check it is replaceable.
Appears inThe Day After Tomorrow
Salts and sugar in the ratio that makes water absorb faster. Useful whenever you are sweating more than you are drinking.
Appears inMad Max: Fury Road
Tells you something about water or soil in seconds. Not a purity test — it measures acidity, nothing more.
Appears inDante's Peak
A pack built around a reservoir, for carrying water where there is none. Capacity in litres, not looks.
Appears inDune
Reads nitrogen, phosphorus, potassium and pH so planting is informed rather than hopeful.
Appears inSilent Running
Cooks on any heat source including an open fire, and lasts generations. Seasoning is maintenance, not decoration.
Appears inStation Eleven
Line wound on a spool, worked by hand, no rod. Packs to nothing and works from a boat or a shore.
Appears inWaterworld
Draws from a well or tank by hand. Rated by lift height, which is the number that decides whether it works at your depth.
Appears inDawn of the Dead
Line, hooks and weights in a container the size of a matchbox. Almost no weight for a real food option near water.
Appears inCast Away
Thick-walled insulation that holds ice for days rather than hours. Weight is the trade-off.
Appears inTremors
Sealed, desiccated storage that keeps seed viable for years. Cool and dark does the rest.
Appears inSilent Running
Chemical treatment for when filtering is not practical. Slow, unglamorous, and weighs almost nothing.
Appears inThe Road
Hand-pumped filtration that works from shallow or awkward sources. Slower than gravity but needs no hanging point.
Appears inDeep Impact
Rigid enough to pour, soft enough to pack flat. Look at the tap; it is where these leak.
Appears inSan Andreas
A compact still for a life raft or coastal situation. Output is measured in millilitres per hour.
Appears inWaterworld
One pot that boils, cooks and sterilises. A lid halves the fuel you spend.
Appears inThe Terror
A sealed pail of dried meals with a decade-scale shelf life. Check servings per bucket against the calories you actually need.
Appears inDeep Impact
A bladder that lives in a pack with a hose over the shoulder. Cleaning access is what separates the good ones.
Appears in127 Hours
A hand pump that fits an existing well casing. Compatibility with your casing diameter is the first thing to check.
Appears inLeave the World Behind
A larger two-burner stove that runs on bottled gas. Cooks for a group and works indoors only with real ventilation.
Appears inThe Happening
Open-pollinated varieties that breed true, so next year's crop comes from this year's plants.
Appears inDeep Impact
A manual opener that does not care about power. The pivot is the wear point; steel outlasts alloy.
Appears inWar of the Worlds
Grows food without soil under controlled light and nutrient. Needs power, and pays back in speed and yield.
Appears inWaterworld
Sealed rations measured in servings rather than days. Read the calorie count per serving — the two figures often disagree.
Appears inContagion
Replaces sodium lost through heavy sweating, which plain water does not. Easy to over-use; follow the label.
Appears inDune
A bottle with the filter built into the lid. Convenient, low capacity, and easy to carry every day.
Appears inThe Last of Us
Bulk storage in food-grade plastic, usually 200 litres. It needs a bung wrench and somewhere structurally sound to sit.
Appears inThreads
Long-storing staple grain in quantity. Sealed food-grade containers and a cool dark place do most of the work.
Appears inDawn of the Dead
Compressed blocks built for calories per gram rather than flavour. Long shelf life and no cooking.
Appears inThe Divide
Trays, medium and a cover to hold humidity while seed germinates. The dome is the part people forget.
Appears inThe Martian
Removes air so dry goods keep years rather than months. Bags are the recurring cost.
Appears inInterstellar
Drink directly from a source through an inline filter. No capacity, no storage — but it fits in a pocket.
Appears inThe Impossible
Keeps a hot drink hot through a night shift. Vacuum seal quality is the whole product.
Appears inSnowpiercer