The default here is to show something like this, where we show a bedrooms label but not a bathrooms label:

But for some sites, you may wish to customize this label (adding ‘Bath’ or ‘Bathroom’ or whatever you’d like. Here’s a sample filter to accomplish that:
add_filter( 'rentfetch_customize_baths_text', 'my_customize_baths_text', 10, 1 );
function my_customize_baths_text( $baths ) {
if ( $baths < 2 ) {
return $baths . ' Bathroom';
} else {
return $baths . ' Bathrooms';
}
}