function jma_spout_args( $query, $args ) {
 
    if ( isset( $args['query'] ) && $args['query'] == 'spouts' ) {
        $query = array(
             'post_type' => 'product', 
             'post__in' => array( 126,128 ) 
        );
    }
 
    return $query;
}
add_filter('themeblvd_posts_args', 'jma_spout_args', 10, 2);