Following are all the flexitank like words, in the list below.
TANK
100% like flexitank
TANKTAINER
100% like flexitank
WATER TANK
99.99% like flexitank
CONTAINER
99.99% like flexitank
WATERTANK
99.98% like flexitank
TUPPERWARE
99.98% like flexitank
CRYOTANK
99.98% like flexitank
CUBITAINER
99.97% like flexitank
WATERBAG
99.97% like flexitank
TANKAGE
99.96% like flexitank
NALGENE
99.96% like flexitank
WATERJUG
99.96% like flexitank
BLIVET
99.95% like flexitank
BUCKET
99.95% like flexitank
POLYBOTTLE
99.94% like flexitank
FISHTANK
99.94% like flexitank
JUGLET
99.94% like flexitank
PETROL TANK
99.93% like flexitank
CONTAINERFUL
99.93% like flexitank
BOTTLE
99.92% like flexitank
TERMINAL
99.92% like flexitank
FLEAKER
99.92% like flexitank
CRYOCONTAINER
99.91% like flexitank
WATER BOTTLE
99.91% like flexitank
FISH TANK
99.9% like flexitank
THERMOCONTAINER
99.9% like flexitank
HIP FLASK
99.9% like flexitank
HYDROFLASK
99.89% like flexitank
TETRA PAK
99.89% like flexitank
SMOOTHIFIER
99.88% like flexitank
BOTTLE BANK
99.88% like flexitank
TANKERFUL
99.88% like flexitank
BLADDER
99.87% like flexitank
WATERPOT
99.87% like flexitank
DUNK TANK
99.86% like flexitank
OVERPACK
99.86% like flexitank
WATER BOX
99.86% like flexitank
GOATSKIN
99.85% like flexitank
SCREWTOP
99.85% like flexitank
JERRY-CAN
99.84% like flexitank
TROUGH
99.84% like flexitank
BULK LIQUID
99.84% like flexitank
RECEPTACLE
99.83% like flexitank
JERRY CAN
99.83% like flexitank
SKIN
99.82% like flexitank
VACUUM PACK
99.82% like flexitank
KENDI
99.82% like flexitank
BOTTLE CRATE
99.81% like flexitank
TUBE
99.81% like flexitank
FROTH PACK
99.8% like flexitank
FLASK
99.8% like flexitank
RHYTON
99.8% like flexitank
INKHOLDER
99.79% like flexitank
CONTAINANT
99.79% like flexitank
TANKFUL
99.78% like flexitank
JERRICAN
99.78% like flexitank
PIPE
99.78% like flexitank
SQUEEZABLE
99.77% like flexitank
THERMOSTABILISER
99.77% like flexitank
CANTEEN
99.76% like flexitank
HYDROPHORE
99.76% like flexitank
HYDRANT
99.76% like flexitank
WATERBOTTLE
99.75% like flexitank
CONTAINER DEPOSIT
99.75% like flexitank
LIQUID AIR
99.74% like flexitank
OILCAN
99.74% like flexitank
HOPPER
99.74% like flexitank
GASHOLDER
99.73% like flexitank
INKWELL
99.73% like flexitank
TANKERLOAD
99.72% like flexitank
WELL
99.72% like flexitank
LIDFUL
99.72% like flexitank
DRUM
99.71% like flexitank
HIP-FLASK
99.71% like flexitank
CARBOY
99.7% like flexitank
PAIL
99.7% like flexitank
VESSEL
99.7% like flexitank
HIPFLASK
99.69% like flexitank
SLACK-TUB
99.69% like flexitank
FILL
99.68% like flexitank
FLASKLET
99.68% like flexitank
TANKARD
99.68% like flexitank
KILNER JAR
99.67% like flexitank
FILLER CAP
99.67% like flexitank
MILK JUG
99.66% like flexitank
LEACHTUB
99.66% like flexitank
LIDDING
99.66% like flexitank
WIDGET
99.65% like flexitank
FOUNTAIN
99.65% like flexitank
TUMBLER TANK
99.64% like flexitank
SLACKTUB
99.64% like flexitank
GAS BOTTLE
99.64% like flexitank
WATER BUTT
99.63% like flexitank
BARREL BAG
99.63% like flexitank
OXYGEN MASK
99.62% like flexitank
PEWTER
99.62% like flexitank
MILKCRATE
99.62% like flexitank
LIQUID MIRROR
99.61% like flexitank
BOTTLE SLING
99.61% like flexitank
SWISH
99.6% like flexitank