Model numbers in.
Guesswork out.

Uses the 16 oz NC299 / NC300-series pint system.

! Do not buy NC500 Deluxe or NC701 Swirl pints for this machine.

Uses the 16 oz NC299 / NC300-series pint system.

! NC500-series 24 oz Deluxe pints are physically different and do not fit.

Listed by SharkNinja for the 16 oz NC300-series pint system.

! Match the SKU on the label under the machine before ordering.

Uses the 24 oz NC500-series Deluxe pint system.

! Standard NC299 / NC300-series 16 oz pints do not fit.

Uses the 24 oz NC500-series Deluxe pint system.

! The similar-looking 16 oz original CREAMi pint does not fit this machine.

Uses the dedicated NC700-series Scoop & Swirl pint system.

! Do not assume original or Deluxe CREAMi pints fit the NC701.

Power-hub attachments are broadly compatible; bowls and planetary tools are model-specific.

! A shared power hub does not make every bowl, beater, dough hook or shield universal.

Power-hub attachments are broadly compatible; bowl-lift tools require exact model matching.

! Tilt-head bowls and beaters should not be assumed to fit a bowl-lift mixer.

Official US specification: 54 mm portafilter.

! A product labeled 54 mm may still use incompatible ear or handle geometry.

Official US specification: 54 mm stainless steel portafilter.

! Verify third-party baskets, bottomless handles and funnels against BES870 specifically.

Official US specification: 54 mm stainless steel portafilter.

! Portafilter diameter does not guarantee grind-cradle or tamping-clearance compatibility.

Breville lists BES878 with its 54 mm dosing-funnel accessory family.

! Prefer accessory listings that identify BES878 rather than diameter alone.

Breville lists BES880 with its 54 mm dosing-funnel accessory family.

! Check exact model compatibility for third-party portafilters and baskets.

Official manual specification: 58 mm stainless steel portafilter.

! The Oracle Jet is not part of Breville's 54 mm Barista accessory family.