← Gear database

Katadyn Gravity BeFree 3.0L vs Platypus GravityWorks 4L

Weight and specs compared for 2026 — and which one to choose.

Platypus GravityWorks 4L is the lighter option — 29 g lighter than the Katadyn Gravity BeFree 3.0L (15% less weight). If grams matter to you, that is the one to beat.
shopping_cart Check today's price on Amazon
Spec Katadyn Gravity BeFree 3.0L Platypus GravityWorks 4L
Weight 192 g · 0.192 kg · 0.42 lb 163 g · 0.163 kg · 0.36 lb
Brand Katadyn Platypus
Category Hygiene Hygiene
Katadyn Gravity BeFree 3.0L
192 g

Lightweight gravity filter system at 6.7oz. Ideal for group camping and basecamps.

Full details →
Platypus GravityWorks 4L
163 g

Gravity-fed water filter system for camp use.

Full details →

HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.

Katadyn Gravity BeFree 3.0L vs Platypus GravityWorks 4L: which should you buy?

If saving weight is your priority, the Platypus GravityWorks 4L wins — at 163 g it is 29 g (15%) lighter than the Katadyn Gravity BeFree 3.0L (192 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest hygiene page, or browse the full gear weight database.

More hygiene comparisons

Katadyn Gravity BeFree 3.0L vs PackTowl UltraLite Face Towel Katadyn Gravity BeFree 3.0L vs CNOC Vecto 3L Water Container Katadyn Gravity BeFree 3.0L vs Sawyer Mini Water Filter Katadyn Gravity BeFree 3.0L vs Katadyn BeFree 1L Katadyn Gravity BeFree 3.0L vs HydraPak UltraFlask Speed 600ml Katadyn Gravity BeFree 3.0L vs HydraPak 42mm Filter Cap